Finalize React Native App

I have pushed my React Native / Expo mobile app to roughly 90 % completion using AI-assisted tooling, but I’m now blocked by a mix of UI/UX glitches, performance slow-downs, and a few lingering functional errors. I need an experienced developer who can step in, stabilise the codebase, and carry the project all the way through Apple App Store approval.

Current state
– Core logic and screens are in place.
– Code lives in a private Git repo with clear commit history and comments.
– TestFlight builds compile but fail review because of crash reports and minor guideline violations.

What I need from you
1. Identify and squash the remaining UI/UX, performance, and functional bugs across both iPhone and iPad targets.
2. Optimise the Expo build for release, ensuring smooth animations, fast initial load, and zero runtime errors.
3. Prepare all assets, metadata, and privacy declarations required by Apple, respond to review feedback, and guide the app through to “Ready for Sale”.
4. Hand back a clean, well-commented branch plus a concise changelog so I can track what was fixed.

Tech stack & tools in play
React Native, Expo SDK 49, TypeScript, Firebase backend, Xcode, Apple Developer portal, TestFlight.

Acceptance criteria
• App passes App Store review without rejection.
• No critical or high-severity issues in Crashlytics after one week of live traffic.
• Lighthouse-style performance score ≥90 on key flows.

If you have shipped at least one React Native app through Apple’s review process—especially one originally built with Expo—I’d love to hand you access and let you run with it.