Legitimate Google Account Manager 7.1.1 for ARM is about 1.8 MB. If you see a 200 KB file, it’s a stub or a fake. If you see a 12 MB file, it’s likely bundled with ad libraries.
Real Google Account Managers require access to accounts, contacts, and networks. If the APK asks for permission to send premium SMS messages or access your camera, cancel the installation immediately. download google account manager 7.1.1