Which Thing First? (WTF?) app for iPhone and iPad

Which Thing First? (WTF?) is a super-simple way of working out your priorities, letting you discover the most effective order of doing things.
Getting Things Done (GTD) by Dave Allen is a great productivity tool. But how do you know which Thing to Get Done first?
Which Thing First? helps you work it out by asking a series of questions, forcing you to consider each task against each other.
This FREE version of the app is fully functional, but limited to 4 tasks. You can upgrade to unlimited tasks inside the app.
I hope you find this app useful. If you like it, please tell your friends and write a review. Send your suggestions to [email protected].
Thanks very much
Matt.