KeepUp : To-Do List + Timer
KeepUp combines a to-do list and a timer. First, you input the time when you want all of your tasks done by. Next, you input all of your tasks and how long you thing they will take. Then, KeepUp uses the current time to calculate how far ahead or behind you are.
This app is great for figuring out how much free time you have in your day and helps you schedule it so you can get everything done.