ADHD friendly personal project manager app and requires no app permissions!
Infinity Project Manager is the best personal project manager on the Google Play store. It allows infinite* recursion of sub-tasks. The projects in the app can have an infinite* number of phases assigned to them. Those phases can all have an infinite* number of tasks assigned to them. Those tasks can also have an infinite* number of tasks assigned to them. You can add an infinite* number of levels of sub tasks assigned to tasks.
There is no user account you have to sign up for. No passwords to remember or protect. No permissions required**.
*infinite doesn't mean literally an infinite number, but a very large, and not limited by the design of the app, number. Plus, eventually your phone will run out of storage space...
**access to a folder on your phone is require to create backups and load from backups, just it's only temporary access to the specific folder, and the permission is only required for the process of manually creating a backup.