Android App (Ongoing project) -- phases 3,4,5

The app is divided into 5 phases. Phases 1 and 2 have been completed by previous freelancer. Now I need a developer who can continue work and finish Phases 3,4,5 for me. The freelancer is required to finish the project till completion, and once accepted the project he should not leave it in the middle. I’m writing brief summary points of Phase 3 here. Complete details will be provided in chat. Phase 3 summary: 1. Fix minor bugs (icon change, alignment of GUI elements, colour change, Ads adjustments etc.) 2. Open source web app integration 3. File and storage synchronization (for offline use) 4. Points and Credits 5. Prompt screens (at different places, and after different activities) 6. In-app purchases (make some features locked, that will be unlocked by using Credits and/or spending Money. Carrier payment should be supported) 7. MathJax integration 8. Quiz is already developed, I want to extend it a little bit. 9. Expandable ListView is already integrated. I want another Expandable ListView that fetches data from Firebase and display it inside the app, along with some filtration options. TERMS AND CONDITIONS: 1. Read the project description carefully and only bid if you agree to the terms and conditions. 2. You are required to complete 3 phases. Each phase is worth $100. So total payment is $300. 3. I’ll create milestone payment of $50 at the start of the phase. After half of the phase is complete, you’ll send me apk along with source code. I’ll check and release $50 payment and immediately create another $50 for second half of the phase 4. You’ll provide regular updates on the progress. You should not lie to me. I’ll ask you for timeline for each phase that should not exceed in any case. 5. You’ll accept the project only if you are sure you can complete all phases 3,4,5 and should not leave in the middle. 6. Your bid should be $200. Bids more or less $200 will be simply ignored. Best of luck.