Need to work on the following tasks:
Having an existing app that is based on Flutter and we need some amendments on this as per the following:

1.) Pay for one day to watch the one episode.

2.) Signup login through phone no. nd OTP

3.) Send notifications to subscribers

4.) Warning for 18+ at new signup

5.) Automatically deduct payment for the subscription after the plan is over.

6.) Add a play button on the poster to play the video.