Hire the Best iPhone App Developers
in the United Kingdom

MY SKILLS: * Platforms: iOS, iPadOS, watchOS, macOS * Languages: Swift, Objective-C, Dart & Flutter * Frameworks: UIKit, SwiftUI, MapKit, CoreLocation, AVKit, StoreKit etc * Databases: Core Data, CoudKit, Realm, Firebase, SQL, ObjectBox, Parse * Other Libraries/frameworks: AWS, AFNetworking/AlamoFire, SDWebImage, Vapour, SnapKit, Sourcery, SwiftGen & more * Source Control: Git, GitHub, Bitbucket. MY EXPERIENCE: * Programming since 2010 * Releasing iOS apps since 2014 * Freelancing on Upwork since 2016 * Top Rated freelancer since 2016 "Top Rated Plus is our way of highlighting freelancers and agencies who consistently perform on large contracts at the highest level." * Expert Vetted since 2023 "Expert-Vetted Talent is the top 1% — pre-screened by our Talent Managers and experts in their field." (this badge is only visible to Enterprise clients). * 100% Job Success Score since 2016 * Clients who would recommend me according to Upwork statistics: 98% * 62 completed contracts, 52 5 star reviews, 3 ~4.50 star reviews, 7 no feedback given * I estimate over 15,000 hours of coding experience creating apps and libraries for clients, my business and for fun * 8 apps published under my own developer account * 40+ apps released or updated for clients MY SERVICES: * Developing New Apps: Bring your ideas to life, whether you have a fully fleshed-out design or just a rough concept. I can work with you from the pre-development stage to app store release and beyond. * Enhancing Existing Apps: Improve your app by fixing bugs and implementing new features. If you're unsure about what needs to be done, I can review the code, identify problem areas, provide a full report and an estimate for you to decide on priorities and budget. * Consulting: Benefit from my expertise to guide you through the development process, ensuring you make informed decisions and achieve your project goals. * AI Generated Code Consultations: If you've been building your own app using AI to generate the code and have gotten stuck or need help, I can review the code and guide you to the next steps. MY WORKING STYLE: * Communication: I maintain clear and open communication for successful collaboration. I'm flexible with using Upwork, Slack, Zoom, Email, Phone, etc., as long as it complies with Upwork's rules. * Architecture: I write modular and S.O.L.I.D. code for better maintainability and reusability. * Unit Testing: I write unit tests to ensure app stability and maintainability, reducing development costs and improving app performance.

London-based Developer, Mobile App Development is my forte...! I use 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), Capacitor 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. ✅ Adept at upgrading existing Expo and React-native Apps. If you are having an issue updating or upgrading Expo, talk to me first. ✅ 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. ✅ Firebase and Supabase integrations ✅ 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, Electron, Capacitor, Supabase

Expert in MAC OS, IOS and Windows development. Apple Xcode, Swift, Objective-C, Mac OS App Development, Cocoa, IOS Expert Multiple apps on IOS appstore. Also having Microsoft Certified Solution Developer and Certified Blockchain developer credentials

🚀 I've shipped real iOS & macOS apps — HealthKit integrations, AI-powered tools, and App Store-ready products built with Swift, SwiftUI, and Objective-C. If you need a Senior iOS & macOS Developer who has already solved the problems your project will face, keep reading. What I've Built Over the past few years, I've developed and shipped iOS & macOS apps across health & fitness, AI tools, and on-demand services — using Apple Xcode, iOS SDK, SwiftUI, and native Swift: A health insights app with Apple HealthKit, wearable data, and AI (Klarity) An AI Logo Maker with real-time design generation and dynamic templates A Thumbnail Maker with Firebase, AWS S3, and OpenAI API integration A walking & fitness app with step tracking and goal-based programs A car rental platform with booking workflows and secure authentication These weren't side projects. They were production apps built for real users and shipped through the App Store. What I Build For You ✅ Full iOS & macOS app development — Swift, SwiftUI, UIKit, Objective-C ✅ iOS SDK, HealthKit, Firebase, REST API, and OpenAI integration ✅ Apple Xcode-based clean architecture built to scale, not just to ship ✅ App Store submission, approval support, and TestFlight setup ✅ Bug fixing, legacy Objective-C migration, and performance optimization How I Work I start by understanding your goal, not just your feature list. Then I build with clean architecture using SwiftUI or UIKit — whichever fits your product best — test thoroughly, and stay with you through App Store launch. You won't need to chase me for updates. I communicate clearly, flag problems early, and treat deadlines seriously. Who I Work Best With Founders and small teams who have a real product idea and need a Senior iOS & macOS Developer who can own the Apple ecosystem end-to-end — iPhone, iPad, and Mac — without hand-holding. 📩 Send me a message with what you're building. I'll tell you honestly if I can help, which stack fits best, and how long it will take.

I'm a highly skilled and experienced iOS developer (over 10 years professional experience in iOS development), used to working with established projects and startups alike. I have a thorough knowledge of all aspects of iOS development, all the way from app design, through backend integration, to releasing on the app store, so whatever your project is I can be the one to bring it to life. I write clean, modular, professional code that can be built upon and is future proof, and always maintain good version control using Github / Gitlab / Bitbucket or whatever platform the project requires. I have released over 20 full applications over the years with clients from the UK, the US, and Europe, and I have a set of my own successful (and very highly rated) personal applications live on the app store, which you can find a link to here on my profile. Further to my iOS development I also work in web and server side infrastructure, which is almost always necessary when working with mobile applications . This means I also have experience building and deploying backend databases (primarily through node.js servers that connect to, but not limited to MySQL/postgreSQL/MongoDB) that can serve the iOS projects I work on, through API's and database integration. As a professional developer I enjoy building good lasting relationships with clients, and I am agile and can integrate myself into existing development teams where projects require this.

🥇 𝗧𝗢𝗣-𝗥𝗔𝗧𝗘𝗗 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗘𝗥 (𝗜𝗢𝗦 & 𝗔𝗡𝗗𝗥𝗢𝗜𝗗) ✅ 9+ 𝗬𝗘𝗔𝗥𝗦 𝗢𝗙 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 ✅ 100% 𝗝𝗢𝗕 𝗦𝗨𝗖𝗖𝗘𝗦𝗦 𝗦𝗖𝗢𝗥𝗘 ✅ 50+ 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣𝗦 𝗗𝗘𝗟𝗜𝗩𝗘𝗥𝗘𝗗 ✅ 𝗔𝗜 𝗣𝗢𝗪𝗘𝗥𝗘𝗗 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 𝗪𝗜𝗧𝗛 𝗟𝗟𝗠𝗦 & 𝗩𝗜𝗕𝗘 𝗖𝗢𝗗𝗜𝗡𝗚 ✅ 𝗙𝗟𝗨𝗘𝗡𝗧 𝗘𝗡𝗚𝗟𝗜𝗦𝗛 & 𝗖𝗟𝗘𝗔𝗥 𝗖𝗢𝗠𝗠𝗨𝗡𝗜𝗖𝗔𝗧𝗜𝗢𝗡 𝗚𝗿𝗲𝗲𝘁𝗶𝗻𝗴𝘀, I'm 𝗛𝗮𝘀𝗲𝗲𝗯 𝗜𝘀𝗹𝗮𝗺, a professional 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 & 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 who builds AI powered, production ready mobile apps using the latest tools including LLMs, Vibe Coding, Lovable, and Replit. I help startups and businesses transform their ideas into powerful mobile apps that deliver real business results from MVP to full scale production apps and I do it faster than traditional developers using AI accelerated workflows. ✳️ 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 𝗜𝗡𝗖𝗟𝗨𝗗𝗘𝗗 𝗜𝗡 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧: ✔ 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗔𝗽𝗽𝘀: React Native, Flutter ✔ 𝗡𝗮𝘁𝗶𝘃𝗲 𝗔𝗽𝗽𝘀: Swift (iOS), Kotlin (Android) ✔ 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: OpenAI, Claude, Gemini, LLaMA, LangChain, LlamaIndex ✔ 𝗩𝗶𝗯𝗲 𝗖𝗼𝗱𝗶𝗻𝗴 & 𝗔𝗜 𝗔𝗰𝗰𝗲𝗹𝗲𝗿𝗮𝘁𝗲𝗱 𝗗𝗲𝘃: Lovable, Replit, Cursor, Bolt, v0 ✔ 𝗟𝗟𝗠 𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀: AI Chatbots, Smart Search, Voice AI, RAG Systems ✔ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: REST APIs, Node.js, FastAPI, Firebase, Supabase ✔ 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀: Chat, Notifications, Live Tracking, WebRTC ✔ 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Stripe, PayPal, In-App Purchases ✔ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲: Firebase, Supabase, Firestore, PostgreSQL ✔ 𝗔𝗽𝗽 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: App Store & Google Play Publishing 🤖 𝗔𝗜 𝗧𝗢𝗢𝗟𝗦 & 𝗩𝗜𝗕𝗘 𝗖𝗢𝗗𝗜𝗡𝗚 𝗦𝗧𝗔𝗖𝗞: → 𝗟𝗟𝗠𝘀: OpenAI GPT-4o, Claude 3.5, Gemini 1.5, LLaMA 3, Mistral → 𝗩𝗶𝗯𝗲 𝗖𝗼𝗱𝗶𝗻𝗴 𝗧𝗼𝗼𝗹𝘀: Lovable, Replit, Cursor, Bolt, v0 by Vercel → 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀: LangChain, LlamaIndex, AutoGen, CrewAI → 𝗩𝗼𝗶𝗰𝗲 & 𝗩𝗶𝘀𝗶𝗼𝗻: Whisper, ElevenLabs, ML Kit, TensorFlow Lite → 𝗔𝗜 𝗔𝗣𝗜𝘀: OpenAI API, Anthropic API, Replicate, Hugging Face 🏆 𝗧𝗢𝗣 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦: 📲 𝗔𝗜 𝗙𝗶𝘁𝗻𝗲𝘀𝘀 𝗔𝗽𝗽 – React Native + GPT-4o + Supabase + Voice Coach 📲 𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 – Real-time Chat + Video Calling (WebRTC) 📲 𝗔𝗜 𝗘-𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗔𝗽𝗽 – LLM Recommendations + RAG + Firebase 📲 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗔𝗽𝗽 – AI Search + Payment Integration + Admin Panel 📲 𝗢𝗻-𝗗𝗲𝗺𝗮𝗻𝗱 𝗦𝗲𝗿𝘃𝗶𝗰𝗲 𝗔𝗽𝗽 – Booking + Live Tracking + AI Assistant 📲 𝗔𝗜 𝗖𝗵𝗮𝘁𝗯𝗼𝘁 𝗔𝗽𝗽 – Built with Lovable + LangChain + OpenAI in 3 days 🚀 𝗔𝗣𝗣 𝗖𝗔𝗧𝗘𝗚𝗢𝗥𝗜𝗘𝗦 𝗜 𝗘𝗫𝗖𝗘𝗟 𝗜𝗡: Fintech Apps • AI Powered Apps • Marketplace Apps • Social Networking Apps • Real Estate Apps • E-commerce Apps • SaaS Mobile Apps • On-Demand Service Apps • Booking & Reservation Apps • Food Delivery Apps • Education & E-Learning Apps • Healthcare & Telemedicine Apps • Logistics & Tracking Apps • CRM & Business Apps • Fitness & Lifestyle Apps • LLM Powered Apps 💬 𝗪𝗛𝗬 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘? ✅ 𝗔𝗜 𝗔𝗰𝗰𝗲𝗹𝗲𝗿𝗮𝘁𝗲𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 using Vibe Coding tools for faster delivery ✅ 𝗟𝗟𝗠 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 that makes your app smarter than the competition ✅ 𝗖𝗹𝗲𝗮𝗻 & 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗖𝗼𝗱𝗲 with maintainable architecture ✅ 𝗥𝗲𝗴𝘂𝗹𝗮𝗿 𝗨𝗽𝗱𝗮𝘁𝗲𝘀 & 𝗖𝗹𝗲𝗮𝗿 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 ✅ 𝗢𝗻-𝗧𝗶𝗺𝗲 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝘆 using Agile and AI powered workflows ✅ 𝗣𝗶𝘅𝗲𝗹-𝗣𝗲𝗿𝗳𝗲𝗰𝘁 𝗨𝗜 with Lovable and v0 prototyped designs ✅ 𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 & 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 💥 𝗡𝗢 𝗠𝗢𝗥𝗘 𝗧𝗔𝗟𝗞! 𝗟𝗘𝗧'𝗦 𝗕𝗨𝗜𝗟𝗗! ✳️ 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦 𝗧𝗢 𝗙𝗜𝗡𝗗 𝗠𝗬 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦: | React Native Developer | Flutter Developer | Mobile App Developer | iOS App Developer | Android App Developer | Cross Platform Apps | Hybrid App Developer | AI Mobile App Developer | Firebase App Developer | API Integration | Mobile App Development | Chat App Developer | Social App Developer | E-commerce App Developer | On-Demand App Developer | SaaS Mobile App | Booking App Developer | Delivery App Developer | Fitness App Developer | Education App Developer | Real-Time Mobile Apps | Mobile App UI/UX | App Deployment | Mobile App Optimization |iPhone Mobile App Development | iPhone App Development | Android Mobile App Development | Android App Development | Cross Platform Mobile Development | Cross Platform Development | AI Mobile App Developer | Flutter Mobile App Firebase | Flutter Developer | Flutter Mobile App | Mobile App Developer | Mobile App Development | Flutter Laravel | Flutter Mobile App Developer | Mobile App Builder | React Native Mobile App Development | React Native Mobile App Developer | Mobile Developer | Mobile App Developer | Flutter Mobile App Developer | Flutter Mobile App Dart | Flutter Mobile App Firebase | Flutter Mobile App Developer | Flutter Mobile App | Mobile App Developer | Mobile App Development | Mobile App Redesign