Ike is a neat app which helps organize your tasks by priority and importance, using the Eisenhower priority matrix. Read more about Ike  

The app helps prioritize tasks by importance and you can pick from four categories for your tasks, including focus, goals, fit in and backburner for the ones that aren’t that urgent. It comes with tools for viewing your progress and seeing how many tasks you’ve completed today and how many are overdue.
You can also add reminders to your tasks, attach pictures, record audio notes or add a detailed text note with instructions on how you were to go about completing the task. It comes with multiple themes that you could use in order to prioritize tasks and you can set tasks for work or your personal life. The app also lets you create a location based reminder, so your phone would alert you of tasks that need to be completed in a certain area.