Iurii B.

I build AI-powered mobile apps that ship — from ChatGPT/LLM integration to on-device Core ML — for iOS, Flutter, and Android. Top Rated developer, 13+ years, 50+ production apps launched to the App Store and Google Play. I help startups and companies turn AI ideas into real, revenue-ready mobile apps — and I take them all the way from concept to the App Store. WHAT I DO I specialize in AI-powered mobile app development: integrating OpenAI (ChatGPT/GPT), Anthropic Claude, and other LLMs into native and cross-platform apps, plus on-device AI with Core ML, Vision, and Create ML. Whether you need an AI chatbot, an AI MVP, computer-vision features, voice/speech, or a RAG-powered assistant inside a polished mobile app, that's my core work. WHY CLIENTS HIRE ME 13+ years building mobile apps; 50+ production apps shipped Top Rated on Upwork, with a track record of full-cycle delivery I own the whole build: architecture, UI/UX, secure backend, App Store & Google Play launch Senior enough to advise on scope, cost, and the right AI approach before a line of code is written AI CAPABILITIES LLM integration: OpenAI API, Claude API, GPT models, function calling AI chatbots and AI agents; RAG with vector databases On-device AI: Core ML, ML Kit, TensorFlow Lite, Create ML Computer vision: image recognition, object detection, OCR NLP, sentiment analysis, recommendations, speech recognition MOBILE EXPERTISE Native iOS: Swift, SwiftUI, Objective-C, UIKit, Combine, Core Data Cross-platform: Flutter, React Native Android: Kotlin, Jetpack Compose, Java Backend & integrations: Firebase, AWS, GCP, REST/GraphQL, Node.js, Python Payments & subscriptions: Stripe, Apple Pay, Google Pay, In-App Purchases INDUSTRY EXPERIENCE Healthcare (telemedicine, patient tracking, AI diagnostics), fintech (payments, fraud detection, crypto wallets), fitness & wellness (activity tracking, AI coaching, nutrition), and e-commerce (personalized recommendations, AR try-on). HOW WE CAN START Book a paid consultation for technical advice and project scoping, or invite me to your project / send a message for a quick, complimentary exploratory chat about your app.