Available for quick fixes, urgent bug resolution, and fast MVP delivery.
I help startups, businesses, and entrepreneurs build high-quality iOS apps — from idea to App Store launch and long-term maintenance. With 8+ years in the Apple ecosystem and 250+ apps shipped, I deliver fast, stable, and user-friendly applications for
⟐ iPhone
⟐ iPad
⟐ AppleWatch/WatchKit
⟐ AppleTV/tvOS
⟐ CarPlay
Whether you need a brand-new app, bug fixes, performance optimization, or want to make your app iOS 26 ready with Apple's Liquid Glass design — I deliver production-ready results, on time.
𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂
⟐ Full iOS App Development — Complete apps in Swift and Objective-C with clean architecture and scalable code
⟐ Bug Fixing & Performance — Crash resolution, memory leaks, slow UI, and App Store rejection issues
⟐ App Store Launch & Updates — Deployment, TestFlight, compliance, and version upgrades
⟐ Firebase & API Integration — Auth, push notifications, real-time databases, analytics, and backend connectivity
⟐ MVP Development — Rapid prototyping and launch-ready builds for startups
⟐ Ongoing Maintenance — Feature additions, iOS version compatibility, and long-term stability
𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲
✔ 250+ apps delivered — I've seen almost every type of project
✔ Fast turnaround — urgent fixes and MVPs are my specialty
✔ Clear communication — daily updates, no disappearing acts
✔ Clean, maintainable code — built for scale, not just for launch
✔ On-time delivery — predictable timelines, zero invoice surprises
𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸
Swift · Objective-C · SwiftUI · UIKit · Core Data · Firebase · REST APIs · Push Notifications · Auto Layout · RevenueCat · Superwall · App Store Deployment
𝗟𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘆𝗼𝘂𝗿 𝗮𝗽𝗽.
Send me a message with your project details — I'm happy to give you an honest assessment, even if you're still figuring out the scope.
Native App Development
Objective-C
Firebase
Swift
Mobile App Development
iOS Development
iOS
Apple Xcode
AI Mobile App Development
iPad App Development
Apple Watch
iPhone & iPad Apps
iPhone
iPhone UI Design
SwiftUI
Nikita B.
Belgrade, Serbia
$40/hr
5.0
17 jobs
Clients don't pay for code - they pay for results. That's what I focus on.
I help startups and product teams deliver high-quality iOS apps - on time, with clean architecture and measurable results.
Over 7 years, I've built and shipped 20+ native iOS applications across fintech, healthcare, CRM, and edtech. I work across the full cycle: from scratch builds to legacy upgrades, bug fixes, and team coordination as a tech lead.
What I've delivered:
- Built 20+ production apps used by real customers across 4 industries
- Helped teams reduce development friction by leading designers, backend devs, and QA
- Delivered clean, scalable codebases using Swift, SnapKit, Firebase, and REST APIs
- Converted Figma designs into pixel-perfect, performant UIs
- Helped clients ship faster by establishing Agile workflows and JIRA-based task management
Domains where I've driven results:
- Fintech - banking, payments, card and account management
- Healthcare & Wellness - activity tracking, reminders, sleep analytics
- CRM - client management tools for service businesses
- EdTech - interactive lessons, progress tracking, engagement features
If you need an iOS developer who takes ownership and delivers - let's talk.
Main technology stack
UI: Swift, SwiftUI, UIKit, SnapKit, Interface Builder
Networking & backend: REST API, Firebase (Database, Storage), Alamofire, Swagger, Realm
AI: ChatGPT API, Apple Intelligence, Google Gemini Analytics: Google Analytics, Firebase Crashlytics, Google Tag Manager
Maps: Google Maps, Apple Maps
Social integrations: Firebase Auth, Facebook, VK, Instagram
Subscriptions & Paywalls: StoreKit 1, StoreKit 2, RevenueCat Version control: GitHub, GitLab, Bitbucket
Other: APNs, StoreKit, Firebase Messaging, Photoshop, Figma, Postman
iOS
tvOS
SwiftUI
Swift
iOS Development
Mobile App Development
In-App Purchases
In-App Subscription
In-App Advertising
Firebase
UIKit
Push Notifications
REST API
Mobile Development Framework
Apple Xcode
iPad App Development
iPhone & iPad Apps
Objective-C
Apple Watch
AI Mobile App Development
Taufiq Giri I.
Yogyakarta, Indonesia
$6/hr
4.7
31 jobs
Are you looking for an experienced iOS developer who can build, improve, or scale your Apple application with clean architecture, excellent performance, and production-ready code?
I'm Taufiq Giri, a Senior iOS Developer with 5+ years of experience building high-quality applications for iPhone, iPad, Apple Watch, and Mac. I've successfully delivered 20+ applications across various industries, including AI, digital banking, fintech, healthcare, education, e-commerce, productivity, HRMS, fitness, and social networking.
I specialize in building native Apple applications using Swift, SwiftUI, and UIKit, while also providing complete mobile solutions with React Native, Capacitor, Firebase, Supabase, and Node.js when projects require cross-platform development or backend services.
Whether you need a brand-new MVP, feature enhancements, AI integration, backend development, performance optimization, bug fixing, or App Store deployment, I can help transform your ideas into reliable, scalable, and user-friendly applications.
🚀 Core Expertise
Apple Platform Development:
• Native iOS Development (Swift, SwiftUI, UIKit)
• iPadOS, watchOS & macOS Development
• Apple Human Interface Guidelines (HIG)
• MVVM, VIPER & MVC Architecture
• App Performance Optimization
• Bug Fixing & Code Refactoring
Backend & Cloud:
• Firebase (Authentication, Firestore, Storage, Cloud Messaging)
• Supabase
• Node.js & Express.js
• PostgreSQL
• CloudKit
• REST APIs & GraphQL
• Third-party SDK Integration
Apple Frameworks:
• HealthKit
• WatchKit
• WidgetKit
• Core Data
• SwiftData
• Realm
• MapKit
• Core Location
• AVFoundation
• Authentication (Apple, Google, Firebase, OAuth)
Monetization & Distribution:
• StoreKit
• RevenueCat
• Superwall
• In-App Purchases & Subscriptions
• Push Notifications (APNs & Firebase Cloud Messaging)
• TestFlight
• App Store Connect
• App Store Submission & Review
AI & Modern Development:
• OpenAI API Integration
• Google Gemini API Integration
• AI-powered Mobile Applications
• Claude Code
• OpenAI Codex
• AI-assisted Development Workflow
💡 Services I Offer
✅ Native iOS App Development
✅ SwiftUI & UIKit Development
✅ Apple Watch (watchOS) Applications
✅ macOS Applications
✅ React Native Development
✅ Capacitor Mobile Applications
✅ Backend Development (Firebase, Supabase, Node.js)
✅ API Integration
✅ AI Integration (OpenAI & Gemini)
✅ In-App Purchases & Subscription Systems
✅ Push Notifications
✅ Firebase & Cloud Services
✅ Bug Fixing & Performance Optimization
✅ App Store Deployment & Release Management
✅ Long-term Maintenance & Feature Development
🌍 Industries I've Worked With
• AI Applications
• Digital Banking & Fintech
• Healthcare
• Fitness & Wellness
• E-commerce
• Education
• HR Management Systems
• Productivity Apps
• Social Networking
• Job Portals
⭐ Why Clients Choose Me
✔ Production-ready, clean, and maintainable code
✔ Strong communication and transparent progress updates
✔ Pixel-perfect UI following Apple's Human Interface Guidelines
✔ Reliable delivery with attention to performance and scalability
✔ Experience building applications used by real users
✔ Comfortable working independently or as part of an existing development team
✔ Long-term support after launch
🛠 Technologies
Mobile: Swift • SwiftUI • UIKit • React Native • Capacitor
Backend: Firebase • Supabase • Node.js • Express.js • PostgreSQL • CloudKit
Frameworks: HealthKit • WatchKit • WidgetKit • StoreKit • RevenueCat • Superwall • Core Data • SwiftData • Realm • MapKit • AVFoundation
Development: REST API • GraphQL • Git • GitHub • Xcode • TestFlight • App Store Connect
AI: OpenAI API • Gemini API • Claude Code • OpenAI Codex
If you're looking for a developer who values quality, communication, and long-term collaboration, I'd be happy to discuss your project.
Feel free to send me an invitation or message. I'd love to learn more about your project and help bring your ideas to life.
iOS
Swift
SwiftUI
UIKit
HealthKit
WatchKit
In-App Purchases
Core Data
CloudKit
iOS Development
Apple Watch
Apple Xcode
Apple HealthKit
watchOS
iPadOS
Oleksandr O.
Kyiv, Ukraine
$35/hr
5.0
6 jobs
𝗜 𝗯𝘂𝗶𝗹𝗱 𝗮𝗽𝗽𝘀 𝘂𝘀𝗲𝗿𝘀 𝗲𝗻𝗷𝗼𝘆. 𝗟𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝘆𝗼𝘂𝗿𝘀!🚀
⚡ Senior iOS Engineer with 8 years and 50+ projects behind
⚡ Top Rated Plus - Top 5% of talent on Upwork
⚡ Help turn a native iPhone App idea into a solid MVP and a stable App Store release
⚡ Apple-centric expertise - iOS, iPadOS, watchOS, macOS, Apple TV (tvOS), SwiftUI, UIKit, and iOS SWIFT
⚡ App Store success - Apple Xcode, App Store guidelines, TestFlight, submission, and release support
❤️ Client-oriented
🚫 No short-term gigs, quick fixes, or rush jobs please
𝗖𝗟𝗜𝗖𝗞 𝗠𝗘𝗦𝗦𝗔𝗚𝗘 to get a detailed project review
As a Mobile App Developer and iOS Developer, I help startups and product teams build a new iOS App, improve an existing iOS Application, or launch a full Mobile App Development project from idea to App Store: architecture, backend integration, authentication, payments, security, performance, TestFlight, and App Store submission.
As an iOS Developer I’m focused on Mobile App Development, iOS App Development, and native Apple products for iOS, iPadOS, watchOS, macOS, and Apple TV (tvOS). I build iOS App products for iPhone & iPad Apps, Apple Watch apps, Apple TV Applications, and MacOS App Development using Swift, SwiftUI, UIKit, Objective C, Apple Xcode, iOS SDK, Cocoa Touch, Firebase, StoreKit, Core ML, ARKit, RealityKit, HealthKit, CloudKit, and App Store Deployment.
YOU”LL GET WITH ME:
✔️ iOS & macOS – Expertise in Swift, SwiftUI, UIKit, Cocoa Touch, Objective C, and iOS SWIFT for iOS App, iPhone & iPad Apps, Apple Watch apps, Apple TV Applications (tvOS), and MacOS Mobile App Development.
✔️ App Architecture & Database Architecture – Expertise in MVVM, VIPER, Clean Architecture, PostgreSQL, MySQL, Firebase, iOS Developer Swift work, Swift iOS Developer and Senior iOS Developer tasks.
✔️ Networking & API Integrations – RESTful APIs, GraphQL, Alamofire, URLSession, AWS, Firebase, iOS Mobile App Development, and Mobile App Development.
✔️ Authentication & Security – Apple Sign-In, Firebase Authentication, OAuth, JWT, secure logins, iOS App security, and iOS SWIFT authentication flows.
✔️ In-App Purchases & Payments – StoreKit, Apple Pay, Stripe, PayPal, SwiftUI Stripe screens, and payment logic for iOS App and Mobile App Development.
✔️ Apple Health & Fitness Apps – Apple HealthKit, Core Motion, SiriKit Developers, activity tracking, iOS SwiftUI, SwiftUI iOS, and AI Mobile App Development.
✔️ AR & AI App Development – Core ML, ARKit, RealityKit, Apple Motion, AI Mobile App Developer experience, and intelligent iOS App experiences.
✔️ Apple Home & IoT Apps – HomeKit, Bluetooth, SiriKit, smart automation, iOS SWIFT, and native iOS Mobile App Developer delivery.
✔️ App Store Deployment & Optimization – TestFlight, App Store guidelines, Apple Xcode, iOS App Marketing support.
DELIVERED HIGH-IMPACT APP s:
✅ Business & Productivity Apps – MacOS and iPad App Development for enterprise workflows, Mobile App Design support, and Mobile UI UX Designer collaboration.
✅ Health & Fitness Apps – Integrated Apple HealthKit & Core Motion for activity tracking, Apple Watch, SwiftUI Developer work, and iOS App Development.
✅ E-Commerce & Marketplace Apps – Secure shopping experiences with Apple Pay, In-App Purchases, StoreKit, Stripe, PayPal, and iOS App Developer ownership.
✅ Streaming & Media Apps – optimized playback, AVKit, AirPlay, Apple TV Applications, tvOS support, and iOS App performance.
✅ Finance & Payment Apps – Secure transactions with Stripe, PayPal, StoreKit, OAuth, JWT, and iOS SWIFT implementation.
✅ IoT & Smart Home Apps – HomeKit & Bluetooth integrations for smart devices, SiriKit, and native iOS App automation.
✅ AR, AI & Motion Apps – Core ML, ARKit, RealityKit, motion analysis, iOS Swift Smartphone flows, and SwiftUI interfaces.
APPLE BACKEND & CLOUD SERVICEC:
✔️ CloudKit & iCloud Sync – Seamless Apple cloud storage integration for iOS App, iPadOS, watchOS, macOS, and Mobile App Development.
✔️ Firebase & AWS – Scalable backend architecture, real-time database solutions, Firebase Firestore, REST API, GraphQL, and iOS Developer backend integration.
✔️ macOS Automation & Scripting – AppleScript, Shortcuts, Workflow automation, macOS Swift,
✔️ AI & ML Integration – Core ML, Apple Motion, AI Mobile App Development, ARKit, RealityKit, and intelligent app experiences.
My team’s expertise: Mobile App Development, Mobile App Developer, Mobile App Developer, Mobile App Developer Ukraine, iOS Developer, iOS App, iOS App Developer, Full Stack iOS Developer, iOS SWIFT, iOS Swift Developer, iOS App Developer Swift, SwiftUI, SwiftUI Designer, Swift App Developer, Swift Mobile, Swift Designer, Swift Developer, UIKit, Kotlin Swift, React Native Mobile, Node JS React Native Mobile Developer, Full Stack Developer, Web Developer, Flutter Developer, Flutter Mobile App Development, Mobile App Development FlutterFlow, Mobile Game Developer.
Sounds like a fit? 𝗠𝗘𝗦𝗦𝗔𝗚𝗘 𝗺𝗲 and get expert consultation 📩
Mobile App Development
iOS Development
iOS
Android
Swift
React Native
Java
Apple Xcode
PHP
Smartphone
Flutter
Objective-C
JavaScript
React
Node.js
Python
WordPress
iPhone & iPad Apps
SwiftUI
Mobile App
Trinh N.
Hanoi, Vietnam
$35/hr
4.9
47 jobs
🚀 Ranked #1 iOS Developer on Upwork in Vietnam 🇻🇳
Trusted by startups and growing businesses to build, launch, and scale native iOS apps
With 9+ years of experience in Apple development, I've helped startups, SaaS companies, and growing businesses transform ideas into high-quality native iOS applications used by thousands of users.
Whether you're launching a new product, modernizing an existing app, or bringing your Android/Web platform to iOS, I deliver scalable, maintainable solutions with clean architecture and an exceptional user experience.
What I can help your business with
- End-to-end iOS app development
- Native iOS apps using Swift & SwiftUI
- Convert Android/Web apps into iOS apps
- MVP development for startups
- Long-term product maintenance & scaling
- Performance optimization & refactoring
- UI/UX implementation with pixel-perfect accuracy
- App architecture improvement & technical consulting
- Team collaboration and Agile/Scrum workflow
Technical Expertise
- UI Development: UIKit, SwiftUI, Auto Layout, Core Animation
- Reactive Programming: RxSwift, Combine
- Networking & API Integration: RESTful APIs, URLSession, Alamofire
- Backend & Cloud Services: Firebase, Firestore, Authentication, Analytics
- Push Notifications: APNs, Firebase Cloud Messaging (FCM), OneSignal
- Architecture Patterns: MVVM, Clean Architecture, Modular Architecture
- Local Storage & Database: CoreData, UserDefaults, Realm
- Media & Realtime Features: AVFoundation, WebSocket
- AI & AR Features: CoreML, ARKit, Vision Framework
- Authentication & Security: OAuth, JWT, Keychain
- Maps & Location Services: MapKit, CoreLocation, Google Maps SDK
- Testing & Debugging: XCTest, Instruments, Memory Leak Detection
- CI/CD & Version Control: Git, GitHub, Fastlane, Xcode Cloud
- Project Management: Agile, Scrum, Jira, Trello
Why clients work with me
- 9+ years of professional iOS experience
- Successfully launched and maintained production apps
- Strong focus on clean, maintainable, scalable code
- Clear communication and reliable delivery
- Experience collaborating with startups and remote teams
- Detail-oriented with strong debugging and problem-solving skills
- Long-term partnership mindset
I care about building stable products that support real business growth — not just writing code.
If you’re looking for a reliable iOS engineer to build, improve, or scale your mobile product, let’s connect.
iOS
Swift
Objective-C
UIKit
Agile Project Management
SwiftUI
Firebase
Apple Xcode
iOS Development
Storyboard
REST API
AI Agent Development
Auto Layout
Mobile App Development
watchOS
Apple Watch Application
macOS
tvOS
Flutter
React Native
Otabek T.
Tashkent, Uzbekistan
$30/hr
5.0
10 jobs
Hi, I’m Otabek – a Senior Mobile Engineer with 5+ years of experience building production-ready iOS, Android, and cross-platform applications for startups and growing businesses.
✔️ +90% Job Success Score 📈
✔️ Top Rated - by Upwork Top 10% (coming soon)
✔️ Future Engineers National Competition Winner 🏆
✔️ 5+ years of Experience in Mobile App Development
✔️ 24/7 Availability
I specialize in turning ideas into polished mobile products with clean architecture, smooth user experiences, and scalable code. Whether it’s building a new app from scratch, improving an existing codebase, integrating AI, or preparing an app for the App Store, I focus on delivering solutions that are reliable and built to last.
What I build
* Native iOS Apps (Swift, SwiftUI, UIKit)
* React Native Applications
* Flutter Applications
* AI-Powered Mobile Apps (OpenAI, Claude, Gemini)
* ARKit & 3D Scanning Applications
* Firebase & Backend Integrations
* REST APIs & Authentication
* In-App Purchases (StoreKit 2 & RevenueCat)
* App Store & Google Play Releases
Technical Expertise
Swift • SwiftUI • UIKit • Objective-C • React Native • Flutter • Firebase • Node.js • REST APIs • Supabase • PostgreSQL • Core ML • Vision • ARKit • StoreKit 2 • RevenueCat • Git • TestFlight
Industries I’ve Worked With
* AI & Productivity
* Health & Wellness
* Social & Community Apps
* Marketplace Platforms
* Business Management Systems
* On-Demand Services
* AR / 3D Scanning
* Subscription-Based Apps
Why clients work with me
* Clean, scalable, production-ready code
* Strong communication throughout the project
* Experience working with existing codebases
* Pixel-perfect UI implementation from Figma
* Fast issue investigation and debugging
* Long-term product mindset, not just task completion
Whether you need to build an MVP, modernize an existing application, integrate AI features, or launch a production-ready mobile product, I’d be happy to help.
Let’s build something great.
iOS Development
Mobile App Development
Mobile App
App Development
macOS
ARKit
3D Rendering
iOS
Swift
SwiftUI
React Native
iPhone & iPad Apps
iOS SDK
Mobile Payment Functionality
AI App Development
ChatGPT API Integration
API Integration
Claude
Publishing Software
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