Needs background support – KidTimer - Kid Timer Countdown - By Sarcastic Apps - Game Timer Review

The app works just fine if the iPhone is unlocked and the app is up, but if the phone is locked or the app is in the background you lose most of the benefits, such as 5 min warning, voice countdown, and voice alarm when the timer goes off.
Review by Babonx on KidTimer - Kid Timer Countdown - By Sarcastic Apps - Game Timer.