When you open the app for the first time a dialog will appear asking for subscription payment. it costs 2 birr per month to subscribe. To Backup your contacts, call logs and messages 1) Select Backup from the tab on top of the screen 2) Choose what to backup by selecting any of the three images (Contact,SMS,calllogs). the blue color indicates the type you chosen. You can choose all buttons to backup all of them at once. 3) Press 'start backup' button To Restore your contacts, call logs and messages 1) Select Restore from the tab on top of the screen 2) Choose what to restore by selecting any of the three images (Contact,SMS,calllogs). the blue color indicates the type you chosen. You can choose all buttons to backup all of them at once. 3) Press 'start restore' button The app will take payment from your phone account balance. For Android 4.1 and later To restore your messages the app will ask you to make it the default SMS app. so as soon as the restoration is completed, you will be prompted to return to the default SMS app.