Contact person: Android Expense Tracker with Cashback -- 2

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Location: Kolkata, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I’m planning an Android app that lets users record every rupee they spend while earning an in-app currency by watching rewarded video ads. That currency must be convertible to real money, paid out instantly to the user’s UPI ID or bank account.

Core workflow
• Registration & login will rely on a classic email-and-password flow, stored securely in the backend.
• Once inside, the user adds expenses manually (category, amount, date, notes) and can see running totals per day, week and month.
• Rewarded ads credit the user with coins; a live wallet balance shows both coins and their current INR value. A simple “Convert to Cash” button triggers the UPI/bank transfer after minimum-balance checks and service-fee deduction.

Analytics & reports
1. Monthly expense reports: downloadable PDF/CSV plus an on-screen chart.
2. Ad-watching time analysis so I can see average time spent, daily ad views and total revenue generated.
3. Real-time coin-to-cash tracking for every user, visible both to the user (in the app) and to me (in an admin panel).

Tech expectations
• Native Android (Kotlin or Java) or a well-performing cross-platform stack such as Flutter—whichever you’re most confident can meet Play Store policy for rewarded ads and UPI integration.
• Google AdMob (or similar) for rewarded videos, Firebase for auth/data is acceptable, but I’m open to any secure, scalable alternative.
• Clean, modular code with basic unit tests and clear README so future updates are straightforward.

Deliverables
- APK + full source code
- Simple backend/API with database (expense entries, ad-revenue ledger, withdrawal logs)
- Admin panel (web or mobile) showing user metrics listed above
- Play-ready assets: app icon, feature graphic, screenshots
- One short Loom or YouTube walkthrough so I can see everything working before hand-over

Acceptance criteria
The build is considered complete when:
• A fresh email sign-up goes from install → verify address → first expense entry without bugs.
• Watching an ad shows the correct reward immediately and updates the wallet.
• Converting coins to cash triggers a mock or live UPI payout and reflects in the ledger and user wallet.
• Monthly report download reproduces exactly the expenses entered for that month.

If your skill set aligns and you can commit to these milestones, let’s discuss estimated timelines and any clarifications you need." (client-provided description)