Anton Z.

iOS & macOS Swift developer with 30+ App Store releases and 100% Job Success. I build native iPhone, iPad and Mac apps end to end in SwiftUI and UIKit — subscriptions, Firebase, App Store review — and keep them working after release. What I can take on: - New iOS apps from scratch — MVP to App Store release, SwiftUI or UIKit, iPhone, iPad and Mac - Taking over an existing iOS codebase — new features, bug fixes, refactoring, crashes, memory leaks and performance - Onboarding, paywalls and subscriptions — RevenueCat, StoreKit 2, in-app purchases, restore, A/B paywall variants - Firebase-backed apps — Firestore, Auth, Cloud Functions, Remote Config, Analytics, Crashlytics, push notifications - REST API integration, offline storage, Sign in with Apple, widgets - App Store submission and review — TestFlight, privacy manifests, ATT, GDPR consent, fixing rejections - AI features in iOS apps — OpenAI / LLM APIs, chat with streaming, on-device Apple Foundation Models, Core ML - Video, audio and image features — AVFoundation, Core Image, camera and media processing How I work: - I ask questions before I estimate, and I tell you when a feature is a bad idea before you pay for it. - Clean, maintainable code — MVVM + Clean Architecture, dependency injection, unit tests on business logic, Swift Concurrency. No rewrite of what already works. - Clear written updates, no surprises on scope or budget. - I use Claude Code and Codex daily, so prototypes and iterations come fast — and I review and own every line that ships. Stack: Swift, SwiftUI, UIKit, Objective-C, Combine, RxSwift, Swift Concurrency, MVVM, Clean Architecture, XCTest, SwiftData, Core Data, Firebase, RevenueCat, StoreKit, AVFoundation, Core Image, Core ML, Alamofire, SnapKit, Lottie. Let's talk about what you're building.