If you need a polished iOS app built right on time and App Store ready I can help. I'm Muzammil, a Senior iOS Developer with 10+ years of experience shipping real production apps for startups, founders, and businesses worldwide. I specialize in: ✅ SwiftUI & UIKit apps built from scratch ✅ Screen Time & Parental Control apps (Family Controls / ManagedSettings API) ✅ AI-powered features using OpenAI / ChatGPT ✅ Firebase backends, In-App Purchases, Apple Pay ✅ Maps & location apps (MapKit, Google Maps, Mapbox) ✅ Social, chat, media, and e-commerce apps ✅ App Store submission, approvals & ongoing maintenance Tech: ⦿ Swift / Objective-C ⦿ SwiftUI / UIKit ⦿ Firebase / Core Data / SQLite ⦿ REST APIs / JSON ⦿ In-App Purchases / Apple Pay ⦿ Push Notifications ⦿ MapKit / Google Maps / Mapbox ⦿ AVFoundation / Camera / Audio / Video ⦿ GitHub / GitLab / Bitbucket ⦿ MVVM / MVC / Clean Architecture 100% Job Success Score. Every client rated 5 stars. Send me a message, let's talk about your app.

I’m a Senior Mobile App Developer with 13+ years of experience building high-quality iOS and Android applications—from idea to App Store and Play Store launch. I specialize in iOS development using Swift, SwiftUI, and Objective-C, along with cross-platform development using Flutter (Dart). I help businesses and startups turn ideas into fast, scalable, and user-friendly mobile apps. 💡 What I can help you with: • iOS App Development (Swift, SwiftUI, Objective-C) • Cross-platform Apps (Flutter – iOS & Android) • End-to-End App Development (Design → Development → Deployment) • API Integration & Backend Connectivity • Push Notifications (APNs, Firebase Cloud Messaging) • Firebase & iCloud Integration • In-App Purchases & Subscriptions (StoreKit) • Local Database (Core Data, SQLite) • Social Login (Google, Apple, Facebook) • App Performance Optimization & Bug Fixing • App Store & Play Store Submission (including approvals & guidelines) 🎯 Why clients choose me: • Clean, scalable, and maintainable code • Strong focus on performance and UX • Reliable communication and quick turnaround • Experience working with startups, MVPs, and enterprise apps I don’t just build apps—I help you build products that users love. 📩 Have an idea or need help improving your app? Let’s discuss your project.

Hello! I'm an iOS developer with 8 years of experience. I've worked both in the product companies, and in the outsource companies, developing software for outer customers. I've worked with numerous apple and third-party frameworks in Objetive c and Swift (Alamofire, SwiftyJSON, SDWebImage,RxSwift,Hero etc...). My skills: iOS native app development using Objective-C and Swift iOS design concepts and guidelines RESTful, WebSockets (for real time communication) CoreData, SQLite, Realm Social platform SDKs & APIs - Facebook, Twitter, Google Apple & Google maps Push Notification - APNs and Firebase Source Control - Github, Bitbucket Project management tools - Jira, Trello

Thank you for visiting my profile. I will help you to build your iOS app from scratch or help with some refactoring or feature improvement. My experience includes: - 9+ years of experience with the iOS platform - Experience in object-oriented software architecture, design, programming, and design patterns - Good understanding of the internals of iOS - Testing of iOS applications including writing Unit tests - Experience in Multithreading, Networking - Excellent written and verbal communication skills - Ability to perform in a fast-paced agile environment and work both as a tech lead, a team member, and independently Technical skills: **Programming languages: Swift, Objective-C **Apple Frameworks: CoreData, Core Location, MapKit, Quartz, Core Graphics, Core Animation, Core Location, UIKit (Cocoa Touch), AVFoundation, Core Text, SpriteKit, AudioToolbox, AVKit, Audio Kit, AdSupport, iAd, CoreImage, MediaPlayer, AddressBook, MessageUI, Photos, SafariServices, NetworkExtension, Twitter, Social, SystemConfiguration, XCTest, XCUITest **External Services: CocoaPods, ObjectMapper, Realm, SDWebImage, Facebook SDK, Fabric, Stripe, Braintree, PayPal, Socket.io, Firebase **IDEs/Development Tools: Xcode **Databases: Realm, CoreData, SQLite, SQL **Source Control Systems: Git **Task tracking: Redmine, JIRA, Teamwork, Trello Please write me and let's work together! Talk soon, Dharmesh

🏆 Built a mobile app that was acquired by PaymentUS ⏱ 4000+ hours worked on Upwork ⬇️ 2M+ cumulative downloads across products 🌟 Top Rated Plus Freelancer 🎖 Expert in Native iOS & Cross-Platform Mobile App Development, Legacy App Modernization, and Long-Term Product Support using Swift, SwiftUI, UIKit, and Flutter. 🎖 Hello, I’m Sandeep, a Senior Mobile App Engineer with 8+ years of experience building and maintaining production-ready mobile applications across finance, health, fitness, e-commerce, and SaaS. 💡 Technical Stack: 📌 iOS: Swift, SwiftUI, UIKit, Combine, Auto Layout, Core Animation 📌 Cross-Platform: Flutter, Dart 📌 Architecture: MVVM, Clean Architecture, Modular Architecture 📌 Backend & APIs: REST APIs, JSON, Firebase, third-party SDK integrations 📌 Tools: Xcode, Git, Firebase, Fastlane 📌 Deployment: App Store, TestFlight, CI/CD basics 📌 Legacy Modernization: UIKit / old Swift → SwiftUI & modern scalable architectures 💡 Why Choose Me? ⚡ Proven Expertise: Delivered 35+ mobile apps with real users and business impact. ⚡ Product Thinking: I build apps that scale, not just features that ship. ⚡ Client-Centric Approach: Clear communication, realistic timelines, and full ownership. ⚡ Future-Proof Development: Clean, maintainable, and well-documented code. ⚡ Consistency: Reliable long-term support, not short-term delivery. 💡 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼 𝗕𝗲𝘀𝘁 (𝗔𝗻𝗱 𝗘𝗻𝗷𝗼𝘆 𝗦𝗼𝗹𝘃𝗶𝗻𝗴): 📌 Native iOS Development → Build and maintain high-performance iOS apps using Swift, SwiftUI, and UIKit. 📌 Flutter Development → Develop stable cross-platform apps with shared logic and native-level polish. 📌 Legacy App Modernization → Upgrade outdated iOS apps to modern SwiftUI / clean architectures for an iOS 26 experience. 📌 Performance Engineering → Fix crashes, memory leaks, UI lag, and improve overall app responsiveness. 📌 API Integration → Implement secure, scalable APIs that work smoothly with mobile applications. 💡 𝗪𝗵𝗼 𝗜’𝗺 𝗮 𝗚𝗼𝗼𝗱 𝗙𝗶𝘁 𝗙𝗼𝗿 🎯 Teams needing a senior iOS engineer who can take complete ownership of the app. 🎯 Startups building MVPs that must scale without future rewrites. 🎯 Companies with existing iOS apps needing SwiftUI migration, refactoring, or feature expansion. 🎯 Clients who value quality, reliability, and long-term collaboration over cheap shortcuts. 💡 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 🟢 Available for part-time or full-time contracts 🟢 Reliable US / EU timezone overlap 💡 Let’s Work Together! 📌 Whether you’re building a new iOS app, modernizing an existing one, or need a dependable developer to own your product long-term — I’m here to help. Message me your project details, and I’ll reply in < 1 hour with a clear plan and honest recommendations. Thanks!!

Do you want to build a performant app? Improve app speed? Decrease app size? All with clean, high-quality code? Look no further! I am specialized in complex mobile app development with Flutter for cross-platform apps and Swift UI for Native IOS apps. I can bring your Android or iOS mobile app idea to life, just like I did for my previous clients. Whenever you want to build an MVP or maintain an existing App, I am your guy. But don’t just take my word for it, here’s what past clients have said after working with me. 🏅"Wonderful experience so far! Always has a great attitude and top notch quality of work." FYCit Flutter Mobile App 🏅“Wonderful experience over the last year+ with Ismael. Extremely proficient and responsive. Always has an excellent attitude. Looking forward to working with again.” 🏅“Great job, fast and well done.” I am experienced in: • Languages: Dart, Swift • Frameworks & Tech: Flutter, SwiftUI, UIKit • Backend & API: Firebase, Supabase, REST APIs, Node.js • Databases: Firestore, MySQL, SQLite • Tools: Xcode, Android Studio, Git & GitHub We may be a great fit if you are thinking of: 🔑"I need a developer who can understand our existing application." 🔑"I need a cross-platform or native mobile app" 🔑"I need someone with a strong eye for design and user experience" 🔑"I need to resolve outstanding bugs." 🔑"I need a developer who can meet project deadlines." 🔑"I need a developer with extreme attention to detail." 🔑"I need someone to take this project and get it done efficiently." Working with me, you will get a unique Android or IOS app that users love, excellent communication, and a team-oriented approach. SOUND LIKE A FIT? NEXT STEPS: Click the green ‘Invite to Job’ button in the top right-hand corner, send me a message, and let’s organize a call! 😊 Highlighted Skills: Flutter | Dart | Mobile App Development | Android App Development | iOS Development | Android | IOS | Firebase | Smartphone | Swift UI | UIkit | Git | Xcode | Android Studio | FlutterStack | App Development | IPAD App Development | cloud. Firestore | Appstore | Google Play

I’m a Senior iOS Developer with 10+ years of professional experience and an MS in Computer Science. I help companies design, build, and scale high-quality iOS applications that are reliable, intuitive, and crash-free. 🚀 What I Bring Proven iOS Expertise – Swift, SwiftUI, Objective-C, and cross-platform (React Native, Kotlin). BLE Mesh & Firmware Communication – Experience developing apps that integrate with BLE Mesh lighting systems and embedded firmware, including device provisioning, node status monitoring, and OTA updates. End-to-End Delivery – From architecture & development to App Store release & maintenance. Payments & Fintech – Integrated Apple Pay, Revolut Pay, VISA SDKs and built secure banking solutions. Performance & Testing – Increased code coverage from 20% → 75% and delivered 99% crash-free user rate. Agile Collaboration – Worked with international teams in Agile/Scrum, mentored juniors, and led technical interviews. 🏆 Highlights Travel & Flight Booking App – migrated core pages from Objective-C to SwiftUI, integrated payment SDKs. Firebase integration, Remote Config & Analytics & Crashlytics. iOS Banking App – led full rebuild with modular architecture, achieving 80%+ test coverage. Indoor AR Navigation App – developed custom pedometer & beacon-based positioning system for a large hospital. BLE Mesh Lighting Control App – built iOS app for provisioning, controlling, and monitoring BLE Mesh devices with firmware-level communication. 🔧 Tech Stack iOS: Swift, SwiftUI, Objective-C, XCTest, XCUITest, Snapshot Testing Connectivity: BLE Mesh, Bluetooth Low Energy, Firmware Communication, OTA updates Backend & Cloud: Node.js, Flask, FastAPI, AWS, Azure, Docker, Kubernetes ML/AI: TensorFlow, PyTorch, Generative AI, Computer Vision, Medical Imaging ✅ If you need a reliable senior engineer who can deliver production-ready, scalable apps, let’s connect. I can help with new builds, app modernization, bug fixing, and advanced features like BLE Mesh integrations, payments, AI, or cloud backends. Below I am sharing a few categories of apps that I have developed from scratch. *Flight Booking Application * Online Payment Application * Banking Application * Fintech Application * Navigation and Indoor Navigation Application * Image processing *Bluetooth Mesh *Bluetooth - BLE * Document Management && E-sign Application * E-commerce Application * Beacon Based Application * Photo Editing Application

🏆100% job success score. 🏆TOP RATED PLUS ( 3% of talent on Upwork) specializing in Mobile Applications Development targeting iOS and Android platforms using Native and Hybrid (React Native, Cordova & Flutter) approach.

Hi there! I'm Aziz, an iOS developer with 5+ years of experience building production-ready apps that ship and stay in the App Store across video streaming, logistics, and e-commerce. I own the iOS side end to end, from the first screen to the release build. 📌 Selected Work: - Subscription video streaming app — smooth playback, media downloads, and live streaming via AVPlayer and VLCKit - FMCSA-compliant ELD app for commercial trucking — IOSiX SDK hardware connection, real-time tracking, offline-first - Marketplace MVP — polished and complex iOS app UI, Stripe payments, and Firebase Cloud Functions - AI fitness app — integrated a Python-trained pose detection model through Google's MediaPipe, and built a beautiful, responsive UI and features around it - Social app with chat, posts, and stories - Cargo and courier delivery apps with live order tracking - Multilingual news app and an online store 📱 iOS Development Expertise: - Swift, SwiftUI, UIKit — native iPhone & iPad apps - Clean Architecture, MVVM, MVVM+C — scalable & maintainable code - REST API & Firebase integration (Firestore, Cloud Functions) - Payments: StoreKit, Stripe, Apple Pay - Media: video and audio players, downloads, and live streaming - Maps & location: MapKit, CoreLocation, real-time tracking - Push notifications: APNs, PushKit, CallKit - App Store submission & performance optimization ⭐ Why clients choose me: - I own the full iOS scope, from first screen to App Store release - Clean code the next developer can read and extend - Fast, clear communication throughout the project - Reachable even after the contract ends If that sounds like what you're looking for, send me a message and tell me about your project. Thanks! Specializations: iOS Development · SwiftUI · UIKit · Video Streaming Apps · Social Media Apps · Chat / Messaging Apps · Logistics Apps · MVP Development · Marketplace Apps · Stripe & StoreKit Payments · Firebase Backend · Cloud Functions · Scalable Mobile Architecture · App Store Submission · iPadOS · macOS · watchOS

6+ years of experience building high-quality, user-friendly apps. Specializing in Swift, SwiftUI, UIKit, and Apple’s native frameworks to create seamless, modern, and scalable mobile experiences. 📱 Custom iOS Apps – From idea to App Store, building smooth, well-architected apps. ⚡ Swift, SwiftUI & UIKit Expertise – Modern, clean, and scalable code using the latest Apple technologies. 🚀 Performance & Optimization – Fast, responsive, and well-structured apps for the best UX. 🔗 Third-Party Integrations – Firebase, CloudKit, OpenAI, and more. 🎨 Apple HIG & Best Practices – Following Apple’s Human Interface Guidelines for sleek, intuitive UI/UX. 📩 Let’s discuss your project! Open to both short-term tasks and long-term collaborations.