RevenueCat + Supabase Subscription Integration for Existing React Native / Expo App

I’m looking for an experienced React Native / Expo developer to complete subscription/payment integration for an existing mobile app. The app is already substantially developed. I am NOT looking for a redesign or rebuild. Primary scope: - RevenueCat SDK integration - Monthly + annual subscriptions - Free / Premium entitlement - Existing paywall connection - Restore Purchases - iOS App Store subscription setup/testing - Android Google Play subscription setup/testing - Purchase success / failure / cancellation / expiration handling - Correct user identity mapping - Secure Premium entitlement sync with Supabase - Final subscription testing on both iOS and Android Important: - Do not redesign or rebuild the app. - Do not change unrelated UI/UX, lesson architecture, SQLite, AI Tutor, speech, onboarding, navigation, branding, localization, or unrelated app logic. - If you believe an unrelated change is required, explain it first and wait for written approval. - Do not weaken Supabase RLS. - Never commit API keys, service-role keys, passwords, or secrets to GitHub. - Work on a dedicated GitHub branch, not directly on main. Testing should include: - Free user cannot access Premium - Purchase unlocks Premium - Premium persists after restart - Logout/login restores correct entitlement - Reinstall + Restore Purchases works - Cancellation/expiration is reflected correctly - iOS test purchase works - Android test purchase works - One user cannot gain another user’s Premium - Mobile client cannot directly modify Premium state Confidentiality: This is a private commercial app. Source code, product concepts, workflows, database structure, learning system, UI, prompts, branding, and business information must remain confidential and may only be used to complete this project. You may not copy, reuse, sell, publish, distribute, or use the app as a template for another project. I am willing to sign an NDA before repository access is granted. Budget: Prefer fixed price. Target range: approximately CAD $1,500–$2,500. Maximum around CAD $3,000 depending on experience and exact scope. Before quoting, please answer: 1. How many RevenueCat integrations have you completed? 2. Have you used RevenueCat with React Native / Expo? 3. Have you shipped subscriptions on both iOS and Android? 4. Have you integrated RevenueCat with Supabase? 5. How would you securely sync Premium entitlement with Supabase? 6. How do you test Restore Purchase, cancellation, and expiration? 7. Will you personally do the work or subcontract it? 8. What exactly is included in your fixed-price quote? 9. Estimated timeline? 10. How long will you support subscription-related bugs after delivery?