Simple Todo App

Sometimes I struggle with procrastination because I feel overwhelmed by the number of possible tasks I could do at any given time.

I need a simple way to organise and prioritise my tasks, along with the dependencies between them.

I want to break down each task recursively into the most basic, directly executable actions.

My idea is to develop a minimalistic iOS app which helps me answer one simple question:

What action should I take next?

The app has two modes:

In planning mode I can add new tasks, change their priorities and dependencies or split tasks up into subtasks.

Execution mode evaluates the tree of tasks and tells me what action to take next.