Add multiple photos to each contact you want and simply choose the frequency of change, the picture changes automatically. Features: You can choose the frequency of change for each contacts: after an incoming call, twice a day, once a day, once a week. Share pictures from any application to "Multi Photos Contact" and select a contact to add it to his gallery.
The tool is totally safe to download. This application was originally created by Droid Experiment and it is listed among the Photography category. The app has been downloaded and installed by over 100K users and the latest release is dated Nov 16, 2015.