The 5 payment milestones are:
1. Complete the application with all requirements - 200 dollars
2. Test it with 100 users to see if it works smoothly - 200 dollars
3. Launch it and reach customer acquisition of 1000 users - 400 dollars
4. Reach customer acquisition of 10,000 users - 600 dollars
5. Monthly maintenance and updates - 1000 dollars monthly
If you agree to these conditions then contact me. This is my offer.