A free app for Android, by KickBack.

The gameplay of Lost Echo is very easy to understand and very addictive. You will play as a detective. You will investigate the case of a missing girl named Chloe. You will be joined on your quest by another detective who will help you in solving the case. The two of them will have to investigate the case, find the clues, and solve the mystery. 

You will have to do things like finding the fingerprints, the hair, the clothes, the footprints, and the body of the girl. You will also have to make critical assumptions and then deduce the criminal.