Flutter Self-Development App

I'm looking for a dedicated Flutter developer to create a self-development application. This app should track the usage of various social media platforms such as Instagram, Snapchat, Facebook, TikTok, etc.

Key Features:
- Custom Blocking Interval: Users should have the ability to set their own blocking intervals. This should be done in a user-friendly manner, allowing for easy adjustments to their individual needs.
- Pause Methods: During the blocking period, users should have the option to either wait for a timer to end or solve a sudoku puzzle to unblock their social media apps.
- Notification System: The app should alert users at the end of each blocking interval with a sound alert.
- In the app there should be section to do a coherance cardiac with remainders
-and a pomodora timer too

This will be a non profit app to help people with social media adiction so i don't have a big budget,

Example of the main idea
for example i am scrolling in the instagram for 10 minutes than this app will detect that it been 10 minutes on social media, so it will block all the social medias on the phone until the sudoku is solved or the 5 minutes rest is passed but all the others app should keep functional and user should choose another app to block too if he wants

The app must be compatible with both Android and iOS platforms. The ideal candidate for this project should have:
- Extensive experience with Flutter
- A deep understanding of cross-platform mobile app development
- Ability to create engaging and user-friendly interfaces.