Here we not taking any data from your side so don;t worry about privacy its Internet free app you can say. :P
Here You can select any one of your whatsapp Friend's DP from your device.(DP must be stored on your SD card.)
After that by that DP you can find your friendship with him/her.
There we also think on update and do some more fun by this App.
till than see who is your best friend in it.
Feedback and Comments are welcome.