Disclaimer: This app is not affiliated with Nintendo. Dump only games you legally own. If you saw an "APK" for this online, do not install it . The real tool is free for Windows and does not need an Android version because managing backups is far easier by simply copying files to a correctly named folder ( wbfs/Game Name [GameID]/ ).
It sounds like you're looking for a description or promotional text for something called wii backup manager apk android
Please be aware: The original Wii Backup Manager does run on Android. Any website offering an APK under this name is likely distributing malware or adware. Disclaimer: This app is not affiliated with Nintendo