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🚀 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 build native iOS apps that put machine learning on the device - not in the cloud. Before iOS, I spent a decade as a quantitative risk analyst for banks including Barclays and Absa, building credit-risk and Basel II models in SAS and C++. I hold a PhD in Computer Science (AI), specialising in heuristic search. That background is why clients bring me the AI/ML problems other iOS developers can't touch I don't just implement a model; I know whether it's the right model to begin with. - Clients have been impressed by my professional approach, ability to complete tasks ahead of schedule, and deep knowledge of iOS development. - Exceptional problem-solving skills, innovation, self-management and excellent communication abilities. - An active contributor to GitHub. Some of my key success areas are: - Converting Python/PyTorch machine learning models into Core ML and getting them running efficiently on-device - no live connection or ongoing API costs. - Integrating AI and machine-learning models into iOS apps more broadly. - Updating or fixing older, defunct apps written in Objective-C or Swift. - Using and integrating with backend services such as REST APIs. Core skills (not an exhaustive list) - Worked with HealthKit, CoreBluetooth, CoreGraphics, UIKit, SwiftUI, CoreLocation, In-App Purchases, CoreData, and many other iOS frameworks. - Built geospatial apps, maps, R-Tree algorithms, and large-scale geo-data solutions on iOS.
 - Skilled with UI/UX animation tools such as PaintCode, and with embedding assets in CoreGraphics efficiently. - Experienced with AI technologies such as MyScript (handwriting recognition) and staying familiar with newer platforms such as OpenAI, Anthropic, etc. - Proficient in using architectural patterns such as Model-View-ViewModel + Coordinator (MVVM-C), applying them in UIKit and MapKit for geospatial apps, and binding data and presentation with RxSwift and Combine. - Skilled in creating Swift Packages and incorporating code from C/C++, Objective-C, and Swift — giving other developers a clean way to use mathematical or statistical libraries without deprecated-code or linkage issues, while preserving unit tests for macOS builds. - Proficient in Python 3 for preparing, analysing, or transforming data for AI/ML models before migrating a pre-existing model to the macOS/iOS AI/ML toolchain (Core ML, Vision, Speech, etc.) via .mlmodel, .mlpackage, etc, files. The AI Co-worker's policy - Always adhere to the client's AI policies when using agentic-AI workflows within my development process. - Prioritize local LLMs as the first choice to preserve data privacy and keep intellectual property inside the development environment. - Cloud AI (ChatGPT, Claude) is used only as a last resort and only with the client's permission. - Running local LLM models provides flexibility in selecting the most appropriate model (e.g., Qwen-3 Coder, Llama, IBM Granite) for tasks such as debugging code, generating boilerplate, or performing code reviews. You, the client(s) - High client-retention rate (80%+); clients keep coming back! - Experience on $50k-plus projects, though I also enjoy smaller, intellectually stimulating assignments. - More than just "fingers and hands that punch code." - I plan my schedule in alignment with your needs. Courses and licences by IBM - Deep Learning and Reinforcement Learning — Certificate S7Z8ZA6VPDJD - Unsupervised Machine Learning — Certificate W0JPSC2N0S36 - Supervised Machine Learning: Classification — Certificate BCYGSJNSWTWY - Supervised Machine Learning: Regression — Certificate H8WXTNBHTAVZ - Exploratory Data Analysis for Machine Learning — Certificate 2RH34AOEWB14 All verifiable in the Licenses section. Selected client feedback - "…works well independently, brings new insights and polished solutions, responsive and clear with top-quality work. Have already hired again!" - "We knew we would need a highly organized and innovative developer who could self-manage the development process, and Theo delivered." - "Excellent work – understood the task well, provided good feedback, completed work within schedule." - "Provided a very straightforward and well-thought-out plan." - "Theo would be the best choice." Recent work: - An on-device ML classifier built on Apple Health data, a cross-platform iMessage sticker app, and performance work on a high-traffic chat app. - If your model was trained in PyTorch or TensorFlow and you're not sure it'll convert cleanly to Core ML — that's exactly the kind of problem I catch early, before it turns into a rebuild. I've delivered $50k+ projects but genuinely enjoy smaller, interesting ones too. Want to talk it through first? Book a 30-minute consultation for $50. If you're interested or need more information, let me know.
 Theo

⭐️ Top-Rated Freelancer ⭐️ ⭐️ 100% Job Success ⭐️ Greetings! I'm Pinkesh, your go-to iOS developer who combines unwavering creativity with unmatched punctuality. My mission? To exceed your expectations and meet your project deadlines with utmost precision. As a responsible, ambitious, and seasoned professional, I am eager to leverage my extensive knowledge, experience, and technical prowess to transform your iOS ideas into a breathtaking reality. With a rock-solid background in iOS development spanning over 6+ years, I bring a wealth of expertise to the table. Here's a glimpse of my skills and proficiencies that make me the perfect fit for your project: 💡 Languages: - Swift: Expert level - Objective-C: Mastered - SwiftUI: Proficient 🚀 Platforms: - iOS - iPadOS - watchOS - tvOS 🏛️ Architectures: - VIPER - MVVM - MVC 🔧 Frameworks: - UIKit - CoreData - CoreBluetooth - CoreMotion - CoreLocation - AutoLayout - SpriteKit - Notifications - Firebase - SocketIO 💻 Tools: - Xcode - Git - SVN - Jira - Trello When you choose to collaborate with me, your satisfaction becomes my unwavering commitment. I pour my heart and soul into every project, going above and beyond to ensure your vision becomes an extraordinary reality. My impressive track record attests to my dedication to client success. If you're seeking a brilliant iOS developer who brings exceptional talent, creativity, and a razor-sharp focus on delivering outstanding results, your search ends here. Reach out to me now to discuss your project, and let's embark on a journey to make your iOS dreams come true. Together, we'll create something truly remarkable!

iOS Developer | SwiftUI • UIKit • API Integrations • Firebase Hi! I help startups and businesses turn their ideas into fast, visually beautiful, scalable iOS apps. With 5+ years of experience building apps that people love to use, I’ve helped clients go from rough sketches to App Store-ready products. I hold the Meta iOS Professional Certificate, stay up-to-date with Apple’s latest frameworks, and bring a user-first approach to every project. Whether it's backend API integration, UI/UX, or debugging complex issues—I’ve got your back. 💡 Highlights: SwiftUI & UIKit API integrations (MongoDB, REST, Firebase, etc.) Apps with 4.8+ average ratings Clean, modular, and scalable code Europe-Based, fluent communicator, proactive in feedback Let’s build something awesome together.