Users could use the WORM card with the default file manager in Android phones without installing the APK. This slide shows the WORM Android APK installation guide which is user friendly to Flexxon’s WORM card. Users are required to install the APK by following the guide. Flexxon WORM Android APK for Flexxon’s WORM card works on devices with Android 7 and above. The latter provides user-friendly notifications to users.