Similar to Passable Shots this is an app to gather information in the phone that can only be decrypted using a private key that is not stored in the phone.
In this case, the information stored is a counter. Using homorphic encryption, this counter is stored encrypted with a public key stored in the phone and 'kept updated' without decrypting.
The use case for such an app is rather tenuous but it could be used for keeping track of the number of security cameras in an area, for example.