Your app already works — this makes it smart. I integrate GPT or Claude into your existing iOS (Swift/SwiftUI) or React Native app: an in-app assistant with streaming replies, voice input, or smart search grounded in your own content.

What you get: the feature working inside your codebase with source, a secure API layer so your keys never sit in the app bundle, real loading, error and offline states, token-cost notes so your bill stays predictable, and one round of refinement after you try it.

I am a senior mobile engineer with 5+ years of production work: a connected-vehicle app live on the App Store, a mobile banking app used by millions, and payment features on a national instant-payment rail. You get clean, testable code — not a demo that breaks on a slow network.