JS Backup is a free backup tool developed by JOHOSPACE for Android devices. It offers various features such as scheduled backups, online backup, app restoring, transfer to iPhone, and backup contacts. The app can backup and restore contacts, call history, SMS, MMS, calendars, bookmarks, system settings, home shortcuts, alarms, dictionaries, music playlists, images, songs, and videos. Backup data is saved in CSV format, which can be opened in Excel and other applications. JS Backup can backup media files to cloud storage sites like Dropbox, SugarSync, and Google Drive with more than 2GB of space. The app can also backup APK files to SD cards and the list of installed apps to cloud storage. Users can transfer their smartphone data to another device with the Easy Data Transfer feature, which generates a QR code to restore smartphone data without SD cards, USB cables, or computer data transfer software. JS Backup is compatible with Android OS 4.0 to 6.0 and supports German, French, Spanish, Korean, Thai, and Russian languages.