Hot on the heels of the “iPhone Wind instrument” we have another brilliantly simple – yet utterly useless – iPhone Application. This one could be really handy with the kids.

Turn your iPhone into an iPhone Lie Detector. A very simple app that allows you to pretend to find out if someone you are talking to is telling the truth or not.

This one's a liar!

Set up the app by selecting if the user is Male or Female, enter their first name, age and hair colour (oh yeah this is really scientific). Finally enter the question you wish to test the person on. Hand them the phone and ask them to say Yes or No to the question.

This is a fun app, I went around and around asking people questions – got heaps of laughs.

Buy iPhone Lie Detector on iTunes App Store.