Complete Fitness App Development Using Flutter

Job ID: 39505846

Budget: $250 – $750 AUD

I have an Android APK for my app Routivise, a personalised health and routine planner that includes features like workouts, recipes, mood tracking, and routine generation. The UI is designed and mostly built (Flutter or FlutterFlow), but:

Buttons aren’t functional

No AI or backend logic is implemented

Not yet exported for iOS (only have APK)

What I Need You To Do:
1. Complete Button + Page Functionality
Make all buttons work (Start Routine, Generate Workout, Log Mood, etc.)

Ensure smooth navigation between all app sections

2. Integrate AI (GPT-4 or GPT-3.5 via OpenAI API)
Add personalised AI functionality:

Routine generation (based on goals, habits, energy)

Workout generation (goal-based, equipment/no equipment, time-based)

Recipe generation (calorie-based, macro-specific, meal-type)

AI should respond dynamically to user preferences and goals

3. Include Large Content Library
Add a wide variety of prebuilt workouts and recipes:

100+ workouts (bodyweight, gym, home)

100+ recipes (healthy meals, quick options, macro-focused)

Content should be well-organised (tags, filters by goals, etc.)

4. Firebase Backend Integration
Authentication (Email + Google Sign-In)

Firestore to save:

User preferences

Generated content

Mood logs and goals

Cloud Functions (if needed) to trigger AI tasks

5. Export to iOS & Android
Final APK for Android

IPA for iOS (TestFlight-ready)

Optional: help upload to App Store & Google Play

6. (Optional) Subscription Integration
Basic Stripe or Firebase setup for handling subscriptions in future (can be scaffolded for now)

Deliverables:
Fully functional app (APK + IPA)

Source code with documentation

Firebase project live and connected

AI fully working and generating relevant content

Built-in recipe & workout library

Deployment help (if needed)

Tech Stack:
Flutter / FlutterFlow

Firebase (Auth + Firestore)

OpenAI (GPT-3.5 / GPT-4 API)

Stripe (optional)

Xcode for iOS export

Ideal Developer:
Strong experience with Flutter apps

Has integrated OpenAI before

Can export for both iOS and Android

Bonus: Past work on fitness, wellness, or lifestyle apps
Related categories: PHP Mobile App Development iPhone Android HTML5