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Rating is 4.8 out of 5.
4.8/5
based on 4,104 client reviews
  • US$30 hourly
    I'm a software developer. I believe in attention to detail and try to cover every conceivable aspect in software design and development to give you the best possible product. I am working in the software industry for the past 16 years mainly developing for macOS. I'm developing software for macOS and iOS for the past 12+ years, covering stages from inception to design and development to software release and further support and improvements. I am an engineering graduate with a degree in Electrical Engineering from GBPUA&T. A perfectionist by trait, I like to understand most requirements of a job before taking it up.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    macOS
    Apple Xcode
    Application Installer
    iOS
    iOS Development
    Data Recovery
    Mac OS App Development
  • US$55 hourly
    London-based Developer with over a decade of experience, using Test Driven Development to deliver Apps that are streamlined and lag-free. I use my extensive background to deliver results for both iOS and Android using a range of languages including Swift, React-Native (Typescript) and Flutter. I'm a freelance developer with a deep experience of creating iOS and Mac apps. I want to build your dreams...! I'm a full-stack developer. I have industry experience from writing proven mobile (iOS) and desktop apps (Mac). I also have extensive experience of writing scale-able Backends. I have top-notch skills in Swift, Objective-C, React Native and Python. I can build what you want. I'm based in London, UK. As a UK developer I have excellent English skills. I also studied at a UK university. Finally, I benefit from the vibrant developer community in London. Skills ✅ I have used Swift professionally since it's introduction in 2014, including RxSwift and SwiftUI. ✅ Eight years of Objective-C experience. ✅ Deep experience of React-Native. I can produce pixel-perfect UI's on Android and iOS. ✅ Experience with dealing with Apple and adding Apps to the App store. ✅ Extensive knowledge of creating Mac Desktop software installers, including PackageMaker / Packages / Pkgbuild / Pkg as well as making Dmg packages. I can also help with notarization issues. ✅ If you a need UI/Wizard based installer (pkg) then talk to me as I have written several for installing software onto Macs. These use Installer Plugins to work their magic. ✅ Actual professional experience of using Flutter for Client projects. ✅ Long experience of taking on existing projects and maintaining, fixing bugs and add new features to them. ✅ Specialities including VPN (OpenVPN, iKev2, Network Extensions), OpenCV, and adding animation, including SpriteKit. ✅ Latest projects include Fintech with Plaid / Yapily / Token, integrating Zendesk chat solutions into iOS / React Apps. Also advanced visual processing with OpenCV and Machine Learning with CoreML. ✅ Other recent projects have included P2P mesh transfers on Android, and Crypto Payments with Web3/WalletConnect on Swift, and video calling Apps using WebRTC (React-Native / Swift). ✅ Talk to me about Clover POS Development with Android (Java / Kotlin). ✅ ChatGPT Integration with iOS, React-Native / Expo or MacOS. ✅ Bidlogix / BidJS integrations for Auction Houses. ✅ Electron Apps Packaging and Notarisation / Notarising. Keywords for Search Engines • iOS, Android, Flutter, React Native, iPhone, Ipad, Application, Mobile App Developer, Full time Freelancer, Clover POS, IPhone app, Swift, Dart, Kotlin. Smartphone App, Mobile App Development, Android App Development, iOS Development, Native iOS, Native Android, Flutter/Dart, Expert Swift/iOS developer, Firebase, Electrion
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    macOS
    User Authentication
    Mac OS App Development
    Android App Development
    RESTful Architecture
    In-App Purchases
    iPad App Development
    iOS Development
    Apple Xcode
    Mobile App Development
    Firebase
    React Native
    Swift
  • US$29 hourly
    For twelve years, I work as an iOS Developer. During this time, I have completed many projects. More than half of my projects are client applications for servers. I understand how such applications are arranged. How to receive the data from a service using a REST API. I know how to parse a service response and display it in an app and create offline mode. I have experience with video and audio. I can combine video files, put sound on them, change this sound, add text or image to the resulting video. I worked with video and audio players and recorders. I worked with Maps. I can display places on this map, present custom callouts on it, and show routes from a user location to these places. I also can work with the CoreData framework. I know how to get data from a database on a thread and display it to a user without an interface freezing. In 2017 I decided to create some apps on my own. My friend is a radiologist, and he shared with me his idea about a medicine app. We have created this app and published it to AppStore. You can find it if you search for RadAnatomy and RadAnatomyLite. 50% of the proceeds I transfer to my friend. During the work on this app I put myself in the place of customers and gain the priceless experience how an idea is embodied to the app. I can use Photoshop and Sketch, and you do not need to slice images. Just provide me a file with a design. The rest I will do by myself. I pay attention to pixel-perfect and custom fonts because I respect designer work.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    macOS
    Mac OS App Development
    Apple Xcode
    RxSwift
    iOS Development
    iOS
    Firebase
    Swift
  • US$65 hourly
    C++/ObjC/Swift Programmer/Analyst/Software Architect with 17 years of experience and solid background in analysis, design, development and implementation of desktop and mobile applications Co-Founder at BirdsCorp.com - we developed and launched 3 successful iOS applications, available on the App Store I try to carefully choose projects that are interesting to me and match my skills from the one hand and give me a challenge or may bring something new from the other hand
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    DirectShow
    Microsoft Visual C++
    Image Processing
    Apple Xcode
    iOS Development
    C#
    C++
    Swift
    C
  • US$30 hourly
    Over the last 5 years, I have developed a wide range of iOS Applications including apps for small businesses and for huge international companies. I am an expert in creating native iOS apps. Software development is my greatest skill and I have an incredible attention to detail and perseverance in getting the job done, and done well. My goal - "not doing too many things satisfactorily but doing selective things perfectly"
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    RESTful Architecture
    Social Networking Development
    Swift
    iOS Development
  • US$52 hourly
    Hi, My name is Pavel Bukhonov. Thanks for your visiting my profile. I'm from Russia. I was studying in Voronezh State University and on Department of Software and administration of information systems. Was working for 4 years with .net in 2 big projects and in free time was creating some simple apps for iOs then I decide to move all my time to iOs as it was more interesting for me. I have more than 6 years experience of iOs development Objective c and Swift. What are the advantages of hiring me? - High quality and well documented code - Keeping deadline - Quick response whenever you need - Experienced and Nice GUI design that Supports all devices. My #1 goal will always be to have a clear understanding of your needs and vision of the project. Will be glad to work with you. Thanks
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    Apple Motion
    iPhone UI Design
    Apple Xcode
    GitHub
    iOS Development
    Cocos2d
    Swift
  • US$27 hourly
    𝗘𝘅𝗽𝗲𝗿𝘁 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 (𝟴+ 𝘆𝗲𝗮𝗿𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲) - 𝗶𝗢𝗦 (𝗦𝘄𝗶𝗳𝘁, 𝗦𝘄𝗶𝗳𝘁𝗨𝗜), 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 (𝗞𝗼𝘁𝗹𝗶𝗻, 𝗝𝗮𝘃𝗮), 𝗙𝗹𝘂𝘁𝘁𝗲𝗿-𝗗𝗮𝗿𝘁 𝙁𝙡𝙪𝙩𝙩𝙚𝙧 || 𝙞𝙊𝙎 & 𝘼𝙣𝙙𝙧𝙤𝙞𝙙 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 || 𝘾𝙝𝙖𝙩𝙂𝙋𝙏 𝙞𝙣𝙩𝙚𝙜𝙧𝙖𝙩𝙞𝙤𝙣 || 𝘼𝙪𝙜𝙢𝙚𝙣𝙩𝙚𝙙 𝙍𝙚𝙖𝙡𝙞𝙩𝙮 || 𝘼𝙧𝙩𝙞𝙛𝙞𝙘𝙞𝙖𝙡 𝙄𝙣𝙩𝙚𝙡𝙡𝙞𝙜𝙚𝙣𝙘𝙚 || 𝙈𝙖𝙘𝙝𝙞𝙣𝙚 𝙇𝙚𝙖𝙧𝙣𝙞𝙣𝙜 ✴️ EXPERT-VETTED Top 1% iOS & Android App Developer on Upwork 🏆 UPWORK TOP 1% - EXPERT-VETTED Mobile App Developer 🚀 UPWORK TOP RATED PLUS Mobile App Developer ✅ 30+ SUCCESSFUL PROJECTS in iOS & Android Mobile App Development 🔥 8000+ UPWORK HOURS ⭐ 100% JOB SUCCESS SCORE I am Full-time Independent Mobile App Developer (Want to create an app?), I am a highly skilled software engineer with about 9+ years in mobile app development. I have developed and published 50+ iOS & Android apps. Here are some of my technical skills: Languages: Apple App Developer, Swift, Combine, SwiftUI, Objective-c, Android Developer JAVA, Kotlin, & Node.js, ChatGPT4 API, Cross platform / Hybrid App Development Flutter. Tools: Xcode-11, Android Studio, JDK, IDE, VS Code. My experience (Mobile App Developer Social, Dating, OnDemand, eCommerce, Grocery,Fitness App Development.) in programming includes but not limited to the following area of expertise: - In Design using Autolayout, Constraint - CoreData, Core location, SQLite - Geolocation and Geofencing. - AFNetworking, Alamofire - AVFoundation Framework for Audio, Photo, Video Manipulation - In-App Purchase / Push Notifications - Certificate Generation / Provisioning / Code Signing / App deployment to store - Chat Applications Development - Firebase Integration, AWS - Google, Facebook, Twitter API Integration - Social media integration like Google, Facebook, Twitter, Instagram, etc. - AI, ChatGPT, ARKit, iBeacon, BLE, IoT, Wrist Band, Machine Learning, ChatGPT4 API, etc. -And more I possess an in-depth understanding of the entire app development process and can provide solutions to various technical issues. I prioritise designing and developing apps with easy-to-use, eye-catching designs that provide helpful functions for users. I recently completed 4 SwiftUI, ARKit, Machine Learning, ChatGPT (OPenAI) Artificial Intelligence, Object recognition based iOS Applications & implemented Machine Learning, Artificial Intelligence & IBM Watson; Please let me know if you need Any help in an iOS and Android Mobile App Development. I believe customer satisfaction is key to success and thrive on delivering with 100% satisfaction. Thanks & Regards, Jaydeep
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    Artificial Intelligence
    Social Networking Development
    Business Process Management
    Mobile App
    App Development
    Apple Xcode
    UIKit
    iOS Development
    API Integration
    Android
    Kotlin
    PHP
    Swift
    Mobile App Development
  • US$25 hourly
    🌟 Elevate Your iOS, iPhone, iPad, and MacOS Development Projects with a Proven Expert! 🌟 🔹 Over a Decade of Mastery in Crafting Digital Excellence for iOS, iPhone, iPad, and MacOS Platforms 🔹 50+ Mobile Apps Delivered with Success for Apple Ecosystem 🔹 2600+ Hours of Top-Quality Work Across 30+ iOS, iPhone, iPad, and MacOS Projects Looking for a seasoned specialist to transform your iOS, iPhone, iPad, or MacOS development dreams into reality? Your search ends here! With over ten years of immersive experience, I bring a passion for creating exceptional digital experiences tailored specifically for iOS, iPhone, iPad, and MacOS platforms. Thriving in SCRUM/Agile environments, I consistently deliver outstanding results that exceed expectations. Why Choose Me for Your iOS, iPhone, iPad, and MacOS Projects? ✨ Mastery in Crafting Unparalleled Digital Experiences for Apple Devices ✨ Extensive Track Record of Success with 50+ iOS, iPhone, iPad, and MacOS Mobile Apps ✨ Proven Expertise in iOS, iPhone, iPad, and MacOS Development, Tailored to Your Needs During the last 10+ years, I have developed many different types of iOS and Android apps. Food delivery app, On-demand App, Home services app, Handyman app, Marketplace app, Salon app, Beauty app, Taxi app, Ride app, E-commerce app, Dating app, Health and fitness app, Travel app, Live Streaming app, Video streaming app, Finance app, Shopping app, Telemedicine app, Finance App, Real estate app, Social media app, Chat app, Business app, Messaging app, Online education learning app, Hotel booking app, Grocery order app, AI Chatbot, AI Wellness app, AI Learning app and many more. Specializing in iOS, iPhone, iPad, and MacOS Development: 🌐 Cutting-Edge Location Tracking Solutions for iOS, iPad, and MacOS 📱 Innovative Social Media/Dating Apps with Video and Audio Chat Features for iPhone and iPad 🎥 High-Performance Video and Audio Player Applications for iOS and iPad 💰 Secure and Efficient Financial Apps for iPhone, iPad, and MacOS ✈️ Seamless Airline Apps for Travelers on the Go, Optimized for iOS, iPad, and MacOS 🏦 Reliable Banking Apps for Seamless Transactions on iPhone, iPad, and MacOS 📞 Next-Gen Calling and VOIP Apps for iOS and iPad 📶 Advanced Augmented Reality Applications for iPhone, iPad, and MacOS Platforms My Mobile Development Skills: - SwiftUI, Swift, Objective-C, MVVM, MVP, MVC - Design Patterns, Custom Controls, REST API - iOS, iPhone, and macOS development - Material Design and Mobile UI/UX - Firebase Integration (AdMob, Analytics, A/B Testing, etc.) - Firebase Realtime Database and Storage - XCode, Open Source Tools, Support Libraries - Push Notifications (Silent, Custom, VOIP) - Database Management: SQLite, CoreData - Network Handling: Alamofire, AFNetworking, URLConnection - UI Development with Picasso and Glide - Tools like Crashlytics, Firebase, Fabric, LeakCanary, Timber - SocketIO and SignalR expertise - SwiftLint and SonarQube for Code Quality - SIP Calls, XCFramework, CocoaPods, OneSignal Library - Biometric Authentication, OpenAI & ChatGPT API - Linphone for iOS, iPhone, and Android - Sinch API, Augmented Reality (ARKit), Parental Control & ScreenTime API - AirPlay, Picture-in-Picture - CometChat SDK proficiency Library Development and Management: - iOS, iPhone SDKs - Custom Library Development - Publication of Libraries and SDKs - Uploading SDKs to Package Managers and CocoaPods Automotive Unit and UI Testing: - Unit Testing, Integration Testing, and UI Testing - Tools like Espresso, JUnit, Mockito, Robolectric API Integration: - Beacons, Calendar API, QR Code, OCR - Contacts API, Geolocation API, Maps Embed API - Apple Pay, Street View, YouTube Live Streaming API - In-App Purchases with Braintree - SuperWall & Paywall - GPS, Google Maps, Custom Markers, Foursquare, MapBox - Push Notifications (Firebase Cloud Messaging, OneSignal) - Social Media APIs (Google, Facebook, Twitter, Instagram, LinkedIn, YouTube) - Video Chat (WebRTC, Twilio, Audio Streaming, LinPhone, JitsiMeetSDK, Agora, ZegoCloud, Vonage) - Custom Calendar, Media Gallery, Background Download/Upload - WireShark, CharlesProxy - Deep Linking, Memory Leak Detection (Zombies and Profiles) - Weatherkit API Let's Create Something Remarkable Together for iOS, iPhone, iPad, and MacOS! Fluent in English and dedicated to taking your iOS, iPhone, iPad, and MacOS development projects to the next level. Get in touch today, and let's turn your vision into a digital masterpiece for Apple devices!
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    Google Maps API
    Push Notifications
    VoIP
    In-App Purchases
    Socket.io
    Firebase
    Map Integration
    Chat & Messaging Software
    Swift
    Mac OS App Development
    macOS
    iPhone
    iOS
    iOS Development
  • US$60 hourly
    I've been working as an iOS Developer for 13 years. Experienced in both Swift and Objective-C, I have developed apps for the iPhone, iPad and also Apple Watch. I've worked on Android too, both Java and Kotlin. I have submitted many apps to the App Store, with complex interfaces, extensive web service communication, and multimedia content. Some of these apps got good references in the press, and one of them, Back in Time, was selected by The New York Times as one of the Top 10 iPad apps of the year.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    iOS Development
    Mobile App Development
    Swift
  • US$35 hourly
    • Motivated and reliable Mobile Apps Developer with an excellent work ethic and programming language knowledge base • Able to build applications from concept to final product to the client's or project's specifications • Experienced in object-oriented programming; development, testing, and debugging code; design interfaces • Able to work well independently or as part of a professional development team in order to meet and achieve project goals My skills: # iOS - MVC, MVVM, Swift, Objective-C, Core Location, Core Data, Core Animation, Core Audio & Video, Networking with Alamofire # Android: MVVM, MVP, Clean Architecture, Android Data Binding, Room Persistence Library, Android Architecture Components, Fragments API, Location and Sensors API, Push Notifications, SQLite, UI, Services, Maps, Google Play Services, Audio & Video Streaming, etc. #Flutter # React Native # Firebase # Blockchain Technology # AI/ML for iOS & Android # VCS
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    Wireframing
    Mobile App Design
    Firebase
    PHP
    Swift
    Native App Development
    Mobile App Development
    iOS
    iOS Development
    Android SDK
    Android App Development
  • US$55 hourly
    Results-oriented iOS developer with five years of experience. My vision for an application is developed keeping the user in mind, resulting in useable and intuitive user interface applications. I also understand the importance of creating highly readable and easily maintainable source code. Communication is key to the way that I develop software. Specializing in Mobile application testing,AWS, Firebase Database, MYSQL Database, API/REST, UI Testing, Product Requirements & more.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    iOS Development
    Chat & Messaging Software
    Map Integration
    Push Notifications
    Swift
  • US$70 hourly
    🏅Top Rated Plus(Top 3% of performers on Upwork.) 🏅Top Rated(Top 10% of talent on Upwork) 🏅5+ years of experience Extensive success developing for both native and cross-platform for individual and enterprise clients. Expert development for iPhone and iPad using Swift, Objective-C, and C#. I have launched my apps into the App Store, and I have worked with individuals and larger companies on apps from MVP to the App Store. I have over five years' worth of experience, including at globally known Fortune 500 companies such as Daimler Trucks North America and CVS Health. How I can help you: - Build an app from ideation to MVP and beyond - Revive, update or fix existing applications in need of care - Integrate new or existing applications into popular back-ends like Firebase - App store submission and approval - Maintenance and bug fixes Contact me if you're working on any exciting projects!
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    OCR Algorithm
    Apple Xcode
    Mobile App Development
    iOS Development
    Bluetooth
    Flutter
    Dart
    Core Bluetooth
    Augmented Reality
    UIKit
    iOS
    Swift
    Firebase
  • US$15 hourly
    Professional Mobile Apps - Android, Swift, iOS, React Native Developer I am a goal-oriented Senior Mobile App Developer that embraces new technologies and utilizes them to create useful and easily accessible applications. ➤➤ Technical proficiency includes: ⇨ In order to enhance user- the experience of mobile applications, I basically use UI integration tools like XiB, Storyboard, etc. ⇨ I can easily convert Sketch, Adobe XD, PSD, Invision, Marvel prototype to pixcel perfect design. ⇨ Creative in Designing, web & mobile app screens, Mockups, Wireframes, UI/UX, Fluid Designs, Material UI, Photoshop, AdobeXD, Figma, Invision, User flow, Prototype. ⇨ I believe in working according to the latest trends in technologies and therefore, I am well versed in working with Swift language. ⇨ Other than the above, I have good command over Objective C, Java, Kotlin, REST API, XCode, Android SDK, iOS versions, Apple SDK, libraries, frameworks (UI Kit), Eclipse IDE interface, etc. ⇨ For database management, I commonly use PHP, MYSQL with Web Server integration using JSON, XML based REST Web Service APIs. ⇨ I have experience in Firebase, Parse database and local databases such as CoreData and SQLite. ⇨ Experience in Jitsi App customization. ⇨ Expertise in custom Shopify standards (Shopify app / Themes). Additional Skills: ============= HTML/HTML5, CSS/CSS3, jQuery, JavaScript, PHP, Laravel, Vue.js, Node.js, React.js, etc. Assuring you my best services and looking forward to your kind positive response, which will be the first milestone towards establishing a long-lasting working relation together.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    FlutterFlow
    Golang
    Next.js
    Shopify Apps
    WordPress
    Shopify
    React
    React Native
    Swift
    iOS Development
    Flutter
    Android
    Firebase
    Native App Development
  • US$25 hourly
    I'm a senior developer with 5+ years of experience in developing apps on iOS and Android. And now I'm very happy to see my profile is TOP RATED PLUS on Upwork. I have created many apps with high quality and affordable prices. Over the past 4 years, I have satisfied all of my clients when making their ideas come to life with really great apps. Please review my portfolio and client's feedback to see the testimonials. My experience with iOS and Android development: - Swift / Objective-C - Java - SDK and API add for the native app - Social Networking app - UIKit, CoreFoundation, CoreData, iAd, MapKit, CoreLocation, CoreGraphics, StoreKit - Ads - Payment gateway and In-App purchase - Location tracking - Image/Video processing - Other frameworks I was a creative person before I became a developer. As such, I have an eye for design, mobile analytics and QT/Testing. Hope you will contact me for your project! Thanks
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    iPad App Development
    Business with 1-9 Employees
    iOS SDK
    Android SDK
    Android App Development
    iOS Development
    In-App Purchases
    In-App Advertising
    Java
    Swift
  • US$23 hourly
    Greetings! I am a highly experienced and top-rated mobile developer from Lviv with over 14,000 working hours on Upwork. My expertise lies in developing native iOS and Android apps, as well as cross-platform apps using React Native and Flutter. Over the years, I have worked on a wide range of projects, from simple utility apps to complex enterprise-level solutions. My skills include: • Strong knowledge of Swift, SwiftUI, Objective-C, Java, Kotlin, React Native, and Flutter • Experience working with various APIs and SDKs, including Firebase, Google Maps, and AWS • Proficiency in using version control systems such as Git and SVN • Ability to design scalable, maintainable, and reusable code • Strong debugging and troubleshooting skills • Familiarity with Agile methodologies In addition to my technical skills, I am also an excellent communicator and team player. I have worked with clients from various industries, and I understand the importance of clear communication, timely delivery, and excellent customer service. If you're looking for a reliable and skilled mobile developer, I am here to help. Feel free to get in touch to discuss your project requirements in detail. Thank you for your time, and I look forward to working with you! Best regards, Oleksii .
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    iOS SDK
    React Native
    Flutter
    In-App Purchases
    Java
    Android App Development
    iOS Development
    Kotlin
    Swift
    Smartphone
    Mobile App Development
    SwiftUI
    Android
    iOS
  • US$50 hourly
    ✅ 100% Job Success & Client Satisfaction ✅ 10 years + of experience as iOS mobile developer ✅ Software Engineer degree ✅ Fluent in English ✅ Highly responsive ✅ 7,000+ Upwork Hours As a Software Engineer and mobile iOS & Android developer, I have successfully published numerous apps on the App Store and Google Play. My portfolio showcases my knowledge and experience in converting designs from PSD, Sketch, Figma, and Invision into fully functional, pixel-perfect user interfaces. I have integrated a wide range of libraries and SDKs to deliver great apps with. I take pride in my ability to provide clients with the highest quality work, ensuring that every project is delivered on time and to their satisfaction. 🔧 Technical Skills: iOS development (10+ years, Swift, Vapor, Objective-C) Android development (3+ years, Kotlin, Jetpack Compose) 📱 Apps I've Developed include the following tasks: RESTfull API integrations Biometrics In-App purchases Push notifications Obj-c to Swift migrations Location-based apps (Google / Apple maps integration) Social media login and SDK integration (Facebook, Twitter, Instagram) tvOS watchOS Keyboard extensions (iOS) Live second screen apps for TV shows Messaging and chat apps Trivia games Firebase and live chat integration Backend work
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    JSON
    Swift
    Kotlin
    iOS Development
    RESTful Architecture
    iOS
    Android
    Mobile App Development
    tvOS
  • US$100 hourly
    ✅ Price Guarantee ✅ Quality Guarantee ✅ Fastest (verified in all reviews). Are you tired of cheap developers who promise the world, but can't deliver quality product on time? Tired of cheap developers that end up costing you money to fix their "finished" product that is loaded with bugs and issues? Look no further. I will deliver exactly what I say in a shorter amount of time estimated. A very successful Mobile Developer with over 10 years professional experience, holding several 1st place hackathon wins - including TechCrunch. - Been in several lead roles on successful Android & iOS apps that have 1million+ downloads (with 4.5+ ratings + featured) developed from the ground up. - Well versed in app security & encryption - Well versed in automated UX tests for apps. - Worked on personal game apps during spare time involving real-time multiplayer with voice & text chat. - Well known for speed and attention to detail. - Always up to date with the latest technologies - Google (Firebase) APIs - REST (JSON, XML) - Social Media integration - Barcode, QR scanners - Camera API - Google AdMob - SQLite, ORM - Amazon IAP, Google In-app Billing - Git - A lot of others libraries
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    Apple Xcode
    iOS Development
    Android App Development
    Swift
    C#
    C++
    Java
    Android
  • US$30 hourly
    I am a professional mobile app developer with more than 4 years of experience. I have experience developing native apps using Java, Swift or ReactNative.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    Android App Development
    Swift
    React Native
  • US$75 hourly
    o 15+ years of experience building iOS apps – one of the original App Store developers (July 2008) o 20+ years successfully working with dozens of clients from my REMOTE office, as a telecommuter o 30+ Apps published in the Apple App Store and Enterprise o 25+ years of professional software development experience o 20+ years of experience with networking protocols & methodologies: REST, JSON, HTTP, TCP, UDP o 20+ years of experience with source control systems: Git, SVN, CVS, RCS, VSS, Perforce o Keen ability to distill complex concepts and systems into easily understandable terms o Outstanding analytical and problem-solving skills o Ability to work independently and as part of a team o Exceptional attention to detail, remarkably fast learner, excellent communication skills. o Personable, enthusiastic, conscientious. o Languages: Objective-C, C++, Swift, Java, Kotlin, JavaScript, PHP, Python, Perl, C, C#. o Operating Systems: iOS, watchOS, macOS, Windows, Linux, Unix. o IDEs: Xcode, Android Studio, Visual Studio, Eclipse. o Experience with API architecture design. o Strong understanding of multi-threaded and concurrent applications. o Expert understanding of all aspects of the iOS provisioning workflow. o Experience developing in an agile and test-driven environment. o Experience creating dynamic libraries with CocoaPods. o Experience with third-party libraries, APIs, and SDKs. o Hands-on experience with UIKit, CoreData, CoreGraphics, CoreAnimation, Cocoa design patterns. o Experience with a wide variety of analytics platforms, including Firebase (Google), Flurry (Yahoo), AWS, comScore, Nielsen, Adobe, MOAT (Oracle). o Ability to bring designer’s creations to life, with pixel-perfect implementations. o Experience in video and media-based development projects. o Working knowledge of Android development (Android Studio, Java, Kotlin, XML, Gradle, CircleCI).
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    UIKit
    watchOS
    iPad App Development
    API Development
    JSON
    Chat & Messaging Software
    Mobile App Development
    User Authentication
    Location-Based Service
    Apple Watch
    iOS Development
    Flutter
    SwiftUI
    Swift
  • US$60 hourly
    Professional iOS developer with 9+ years of experience. I can transform your best idea into a polished app on the Apple App Store, resolve any existing issues, or develop the feature that both you and your users have been eagerly awaiting. I am passionate about mobile development and my primary goal is to build applications that will help your business grow: - Build an App using MVVM+Coordinator design Pattern in Swift UIKit or SwiftUI. - Great experience in Profiling, Multithreading, and Networking - Reactive Programming using Apple's latest Framework Combine - Third-party libraries integration using SPM and Cocoapods - Swift-C API Interoperability - excellent written and verbal communication skills - perform code reviews - help with releases, and making sure Apple or Google won't reject it after the review; - post-release maintenance and support; I'd love to hear about your project! Send me a message and let's talk about it.
    vsuc_fltilesrefresh_TrophyIcon Objective-C
    iPad App Development
    Model View ViewModel
    iOS
    Clean Architecture
    iOS Development
    Socket Programming
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    ✔ iPhone, iPad, Apple Watch (Swift, SwiftUI, Combine) ✔ RESTful API UI Animation, CoreData / SwiftData, CryptoKit, Location, Push Notification, CoreML, Apple Pay, StoreKit, EventKit, MapKit, WebKit, HomeKit, CareKit and many other third-party frameworks Have some experience in Phyton, GoLang Full-stack software developer. From analyze and architect (Using UML) to testing and customer support. Adept of TDD and clean code. SCRUM & JIRA Over 25 years experience
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    🌟🌟🌟 TOP RATED with 100% JSS 🌟🌟🌟 I have experience of 10+ years in the development of iOS/Android Mobile Applications and have worked individually as well as in a team. I like to build fully efficient applications which are user-friendly and best in design. I like challenges and welcome any new ideas for App creation which makes me keep learning new things and keep updated about new technology. Client satisfaction and deliverables are the most important parameters for my working environment. My core competency lies in iOS/Android development and I am seeking opportunities to build social, utility, navigation, and web services apps mainly. If you have an idea for an app and want to bring it to life, feel free to contact me. iPhone/iPad Skills: =============== - Xcode, Cocoa Framework, Objective C, Swift - iPhone 7 and iPhone 11PRO iPhoneX, iOS10,11,12 and 13 - UITableView Kit and other SDK controls - SQLite and plists - BarCode, QRCode Scanner - Web Services (SOAP/REST/JSON based) - Asynchronous and synchronous API calls - XML Parsing, JSON Parsing - AVFoundation, AVAudioRecorder and MediaPlayer - Google Maps, MapKit and Annotations - Push Notification, UILocalNotification and Background threading - In-App Purchase - UI/UX Designs for Mobile and desktop app Android Skills: ======= ===== - Android Native Programming Android SDK/NDK, Android Studio/Eclipse, Java/C++, Layout XML, Fragment I am also experienced in developing Hybrid (React Native and Flutter) Mobile Applications. Let's solve your problems and make amazing Mobile App together!!! I will do my best effort to provide you the Best Product with Best Quality. Thanks for your visit.
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How to Hire Top Objective-C Developers

How to hire Objective-C developers

Objective-C developers can help you build apps for iOS, macOS, and other Apple products. Since Apple encourages developers to eventually switch to Objective-C’s successor, Swift, Objective-C specialists are mostly sought after for updating and maintaining legacy code.

So how do you hire Objective-C developers? What follows are some tips for finding top Objective-C consultants on Upwork.

How to shortlist Objective-C professionals

As you’re browsing available Objective-C consultants, it can be helpful to develop a shortlist of the professionals you may want to interview. You can screen profiles on criteria such as:

  • Technology fit. You want an Objective-C developer who understands the technologies behind your software project.
  • Project experience. Screen candidate profiles for specific skills and experience (e.g., migrating a legacy Objective-C codebase to Swift).
  • Feedback. Check reviews from past clients for glowing testimonials or red flags that can tell you what it’s like to work with a particular Objective-C developer.

How to write an effective Objective-C job post

With a clear picture of your ideal Objective-C developer in mind, it’s time to write that job post. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

Job post title

Create a simple title that describes exactly what you’re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample Objective-C job post titles:

  • Objective-C developer needed to refactor legacy code to Swift
  • iOS developer experienced with Swift, Xcode, and Objective-C
  • Swift/Objective-C developer for maintaining/updating a news curation platform

Objective-C project description

An effective Objective-C job post should include:

  • Scope of work: From app development to code migrations, list all the deliverables you’ll need.
  • Project length: Your job post should indicate whether this is a smaller or larger project.
  • Background: If you prefer experience with certain programming languages, software technologies, or developer tools, mention this here.
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Objective-C developer responsibilities

Here are some examples of Objective-C developer job responsibilities:

  • Innovate and present new ideas/solutions
  • Translate customer requirements and UI/UX designs into code
  • Handle third-party API integrations
  • Migrate legacy Objective-C code into Swift

Objective-C developer requirements and qualifications

Be sure to include any requirements and qualifications you’re looking for in an Objective-C developer. Some examples:

  • Proficient in Objective-C (and Swift depending on project requirements)
  • Apple development environments (e.g., Xcode, Cocoa, Cocoa Touch)
  • iOS frameworks (e.g., Core Data, Core Animation)
  • Desired Apple operating systems (e.g., macOS, iOS)
  • Desired Apple hardware (e.g., MacBook, Apple Watch, iPhone)

Objective-C Developers FAQ

What is Objective-C?

Objective-C is a general-purpose programming language that supports object-oriented design by adding Smalltalk-style messaging to the C programming language. It was the main supported programming language for Apple products (e.g., macOS, iOS) until the introduction of Swift in 2014.

How much does it cost to hire an Objective-C developer?

The first step to determining the cost to hire an Objective-C developer will be to define your needs. Rates can vary due to many factors, including expertise and experience, location, and market conditions.

Cost factor #1: project scope

The first variable to consider when determining scope is the nature of the work that needs to be completed. Not all Objective-C projects are created equal. Building a simple store loyalty app will typically take less time than creating an online store with in-app purchases.

Tip: The more accurately your job description describes the scope of your project, the easier it will be for talent to give you accurate cost estimates and proposals.

Cost factor #2: Objective-C developer experience

Choosing the right level of expertise for the job is closely tied to how well you determined the scope of your project. You wouldn’t need an advanced Objective-C developer to perform simple maintenance tasks such as patching your software to keep up with the latest iOS app update. On the other hand, migrating a large codebase for an enterprise app from Objective-C to Swift can be a long multistage process that requires the skills of a senior developer.

Beyond experience level, you also need to consider the type of experience the talent possesses. The following table breaks down the rates of the typical types of Objective-C developers you can find on Upwork.

Rates charged by Objective-C developers on Upwork

Level of Experience Description Hourly Rate
Beginner Can build simple applications with Objective-C and Swift for iOS and/or macOS. Familiarity with Cocoa, Cocoa Touch, and/or Xcode. $20-30+
Intermediate Beyond fundamentals, specialized skills in developing for one or more Apple devices such as iPhone, iPad, Mac, Apple TV, and Apple Watch. $30-60+
Expert Experience managing a product’s progression through the software development life cycle. Working knowledge across the front end and back end of a software stack. $60-90+

Cost factor #3: location

Location is another variable that can impact Objective-C developer rates. It’s no secret that you can leverage differences in purchasing power between countries to gain savings on talent. But it’s also important to factor in hidden costs such as language barriers, time zones, and the logistics of managing a remote team. The real advantage to sourcing talent remotely on Upwork is the ability to scan a global talent pool for the best possible person for the job. Location is no longer an obstacle.

Cost factor #4: independent contractor vs. agency

The final variable regarding talent cost is hiring an independent contractor vs. an agency. An agency is often a “one size fits all” model, so you’ll often have access to a designer, a project manager, an engineer, and more. When hiring individuals you have total autonomy regarding who is responsible for which part of the project, but you’ll need to source each of those skills separately.

The trade-off between hiring individuals vs. hiring an agency is the level of administrative overhead you incur personally in coordinating tasks among all members of the team. Project scope and personal preference will determine which style is a better fit for your needs.

Common Objective-C developer mistakes

Not using prefixes: Classes, global functions, global constants, and protocols should be named with a prefix starting with a capital letter followed by one or more capital letters or numbers. It’s a cosmetic quirk owed to the lack of identifier containers within the Objective-C language.

To avoid namespace collisions, Objective-C relies heavily on prefixes. This is why many global elements start with NS (e.g., NSString, NSObject). For example, within the Cocoa framework, you use the NS prefix for Foundation and Application Kit, AB for Address Book, and IB for Interface Builder. Note that you do not use prefixes for naming methods or the fields of a structure.

Not practicing type safety: One of the major reasons Apple wants its developers to switch to Swift is that the language enforces type safety. Type errors are a common problem with Objective-C codebases because you have to use null pointers to implement type safety. When you try to call a method with a null pointer nothing happens. The following expressions and lines of code become a no-operation (NOP). At first glance, this might seem fine because your app won’t crash. However, if you’re not careful with how you implement your pointers, you could cause hidden bugs within your code that are hard to trace.

Accepting unknown strings as format strings: One common source of errors, crashes, and security problems is blindly accepting unknown strings as format strings. A good example is when you log a simple string with NSLog. If you neglect to use the format specifier %@, you might receive a string with characters that are interpreted as format strings.

//UnsafeNSLog(foreignString);

//Using a format specifier

NSLog(@"%@", foreignString);

Tips and best practices

Follow Objective-C naming conventions

As a rule you’ll want to make sure that any code you write will make sense to future developers working off your codebase. The best way to do that is to ensure you follow standard naming conventions for classes, methods, functions, constants, and other elements of your code. You can find naming conventions for a language like Objective-C off Apple’s official documentation.

Take advantage of C++ interoperability

Swift may be Apple’s preferred application development language, but there are still some advantages to using the more forgiving Objective-C. One of these is interoperability with C++ code via Objective-C++. C++ is basically C with classes—it’s lightweight and one of the fastest languages out there. The ability to leverage the C++ ecosystem of libraries is enough of a reason for some to keep using Objective-C with modern iOS and macOS apps.

Leverage Objective-C’s massive library

Objective-C has been around a lot longer than Swift. Initially released in 1984, it offers countless libraries to help developers with their projects. GitHub’s libraries address everything from real-time app analytics to mock objects for test cases to method swizzling. There are also macros, fragments of code that have been around for so long they’ve been named by the larger developer community, that can be used to solve specific problems you might encounter when building Apple apps. Examples of macros include DLog for logging and debugging and Nimble for creating DSLs (domain-specific languages).

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