Siri Lie Detector

Siri Lie Detector is a prank app that supposedly lets you discover if someone is telling the truth or lying. For it to work its magic you have to tap the Record button while someone is saying something. The app 'scans' the audio for a a few seconds and then totally randomly decides if it's true or not.

Obviously Siri Lie Detector doesn't genuinely detect lies. It doesn't matter what you say into the mic. In fact you can say nothing at all and the app will still 'scan' your voice in search of the truth. It's purely a prank app. And a potentially quite fun one, at that.