A free app for Android, by coju.mobi.

This is a handy utility for Android devices that will allow you to make backups of your call logs. This is useful in case you need to reinstall the OS or do a factory reset, and want to be able to recover all your calls from the beginning.

The app is very easy to use, and is capable of making backups for any device that has an Android operating system. The backup files will be saved in a format that can be restored on any device.

The free version of the app allows you to make backups of up to 200 calls, and the pro version has no limits. The ads in the free version can be removed by purchasing the pro version.