I’m looking for a full-stack mobile developer who can turn my existing study materials into an AI-powered practice app for both Android and iOS. I already have everything the engine needs—past exam papers from 2018-2025, a full question-and-answer book (with explanations), and an additional reference text. Your job is to design and build the app and connect an AI layer that reformats each multiple-choice question and attaches a clear, step-by-step explanation to the chosen answer and to have an ai agent that keep updating everything in the app Core flow • Users create an account or sign in with a simple email-and-password screen. • Once inside, they can browse or search the question bank, attempt multiple-choice items, submit their answer, and immediately receive an AI-generated explanation. • Content comes from my three sources; the AI agent only needs to rephrase, tidy formatting, and expand on the explanation—it does not have to invent new questions at this stage. • The same codebase should ship to Android and iOS (React Native, Flutter or similar is fine). Key deliverables 1. Mobile app source code and working builds for Android & iOS. 2. Admin interface or script that lets me upload new questions in bulk. 3. Server-side logic / cloud functions that invoke the AI model, reformat the question text and attach the expanded explanation before serving it to the user. 4. Basic analytics (number of questions attempted, accuracy rate) stored securely. 5. Documentation covering deployment, API keys and how to swap the AI provider if needed. Acceptance criteria • Smooth email/password sign-up and login. • All multiple-choice questions render correctly on both platforms. • AI response time below three seconds for explanations on a mid-tier device. • Code passes a hand-off review and builds without errors on my machine. If you have shipped cross-platform apps before and are comfortable weaving in an AI completion endpoint (OpenAI, Claude, PaLM, etc.), let’s talk timelines and your recommended architecture. My budget is 350 usd Thanks