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.