Reward-Based Android & iOS App

I’m building a dual-platform mobile application where users earn in-app coins by watching AdMob and Facebook Audience Network rewarded ads, then spend those coins on social-media boosts—specifically Likes, Followers and Comments.

Core flows I need implemented:

• Account creation secured by traditional email-and-password authentication, with the option to sign in through Google for added convenience.
• A referral engine that tracks lifetime commissions so every invited user continues to reward the referrer.
• Dynamic coin pricing that I can adjust from an admin panel without publishing a new build.
• A coin wallet, real-time balance updates and full order history per user.
• Automated order placement via my existing SMM Panel API; once a user spends coins the request should fire instantly and the status should sync back to the app.
• Clean, fast UI that satisfies Google Play & App Store guidelines.

Admin panel (web based): manage users, edit pricing, toggle ads/banners, set API credentials and review/fulfil orders.

Tech expectations: Firebase or Node.js backend—whichever you feel scales best—structured for real-time updates and secure data handling.

Deliverables
1. Fully functional Android & iOS apps (source code included)
2. Web admin panel and documented backend
3. API integration with error handling and logging
4. Store-ready builds plus deployment support

When you reply, please outline similar projects you’ve completed, a realistic timeline and the total cost for end-to-end delivery.