What are some alternatives?
When comparing Focuster and Todapp, you can also consider the following products
ABBYY Business Card Reader - Scan cards ≡ in a second and manage them everywhere ☁
Microsoft To-Do - Task management tool
WorkFlowy - WorkFlowy is an organizational tool that makes life easier. It's a surprisingly powerful way to take notes, make lists, collaborate, brainstorm, plan and generally organize your brain.
Todo - Todo is a to-do and task list app.
Flow-e - Turn your Gmail or Office365 inbox to a Visual Task Board.
Minimal To Do - A simple and minimal to do app.