Thanks to the support of our users JS Backup apps have achieved over 6 Million downloads!
We will continue to strive to improve the app to best suit your needs. Please continue to support us thank you.



"JS Backup" is the best backup and data transfer tool: the No.1 backup app in Japan.
Backup restore scheduled differential backups cross-platform data transfer is just a small list of the many features it can perform. You can backup your contacts photos videos music and document files　etc. to SD card cloud or computer.




â–  Main Features â– 

ï½¥ Backup and restore contacts call history SMS MMS text messages calendars bookmarks system settings home shortcuts alarms dictionaries music playlists images songs and videos.
ï½¥ Transfer your smartphone data to another device with Easy Data Transfer in just a few clicks.
ï½¥ Automatically schedule backups for new files to keep the backup up-to-date
ï½¥ Save backup data to SD card cloud storage services (Dropbox SugarSync Google Drive supported) or computer
ï½¥ Backup app apk files to SD card and the list of installed apps to cloud storage services.
ï½¥ Restore compatible files (image sound video text etc.) attached to MMS messages
ï½¥ Backup restore send and synchronize smartphone data with PC via Wi-Fi




â–  Easy Data Transfer Featureâ– 

ï½¥ Generate QR code which enables the restoration of smartphone data therefore there is no need of SD card USB cables or computer data transfer software.
･ Just scan the generated QR code with JS Backup on the new device and voilà important contacts calendars text messages etc. are back.
※Camera access permission is required to read the QR codes




â–  Recommended OS â– 

Android OS 4.0 / 4.1 / 4.2 / 4.3 / 4.4 / 5.0 / 5.1 / 6.0




â–  Notes â– 
・Support for German French Spanish Korean Thai and Russian are added in addition to Japanese and English.

※Devices with Android OS version older than 2.2 or have not gone through security updates are not supported. If an Android OS update is available please perform the update.

※If a single file exceeds the size maximum capacity of cloud service (Dropbox: 10GB SugarSync: 2GB Google Drive: 30GB) it cannot be backed up.