Question: to do list app android free?
Answer: Todoist (Android, iPhone, iPad, macOS, Windows, Web) ... 
TickTick (Android, Windows, macOS, iPhone and iPad, Web) ... 
Microsoft To Do (Android, Windows, iPhone and iPad) ... 
Google Tasks (Android, iPhone, Web) ... 
Google Keep (Android, iPhone and iPad, Web) ... 
2Do (Android, macOS, iPhone and iPad) ... 
Habitica (Android, iPhone and iPad, Web)