Task Master: To-Do List/Timer app for iPhone and iPad

Task Master combines a to-do list and a timer. First, input the time when you want all of your tasks done by. Next, input all of your tasks and how long you think each will take. Then, Task Master uses the current time to calculate how far ahead or behind you are. You can also save tasks for another day by archiving them. Use the Home Screen and Lock Screen widgets to keep track of your tasks without having to open the app!

This app is great for figuring out how much free time you have and helps you schedule your day so you can get everything done.