needed more features in my intromaker app

i want to upgrade my intro maker app with new features. here are my app.
https://play.google.com/store/apps/details?id=com.jobiba.intromaker

1. currently user subscription functions not working properly in my app so need to be fixed.
2. upgrade ui and add categories for intros and add outro tab where we can add outro styles.
(you can check pixelflow app in google play, i want to make these app type features)
2. make admin panel with upload intro outro features.( all app intro and outro data come from api). currently all intro style data are stored in app.
3. add audio add feature to intro outro customizing panel in app where user can add audio in intro, outro.
4. add search option in background video add library. currently font changing function not working so need to fix these bug.
5. user can add their logo to intro, outro.
6. create 3 tab in bottom 1st. Intro 2nd. outro and 3rd favourite.
7. data receive from api and store in local db.

i would love to more discussion in chat.