Intermittent Fasting Tracker App

I want a simple, engaging companion that lets me press “Start Fast” and “End Fast,” then automatically shows how long I stayed inside (or outside) my daily eating window. The build must launch on both iOS and Android from a single codebase—Flutter or React Native are both fine, as long as you handle TestFlight and Play Console uploads.

The app’s look should feel colorful and vibrant—bright palettes, friendly shapes, and micro-animations that make the experience upbeat rather than clinical. I already have reference screens and a loose mood board you can pull from.

Core scope
• Fasting/eating window timer with real-time countdown
• Customisable push notification reminders for upcoming window changes
• Local data persistence so timing isn’t lost if the phone restarts
• Lightweight onboarding that works without an account (social log-ins can come later)

Deliverables
• Source code, project files, and build instructions
• Signed builds on TestFlight and Google Play internal track
• Short video or Loom walkthrough demonstrating key flows

If you’ve shipped cross-platform health or habit apps before, I’d love to see examples. Clean architecture, clear state management, and responsive UI across common screen sizes will be part of the acceptance check.