Find My iPhone

RECOMMEND-You can use it to track down your iPhone. You can download it for iOS. 

Itorch 4

RECOMMEND-It turns your iPhone in to a torch. You can download it for iOS. 

Onavo

RECOMMEND-You can use it to see how much data your phone is using. You can download it for Android & iOS. 

RL Classic

RECOMMEND-You can use it to scan any barcode and compare price with eBay and Google. You can download it for Android & iOS. 

Battery Doctor

RECOMMEND-You can see how much power is left and check what is use most of the battery`s power. You can download it for iOS.