microG GmsCore is a free software reimplementation of Google Play Services. It allows applications calling proprietary Google APIs to run on AOSP-based ROMs like .
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Android


Authnkey is described as 'A credential provider for Android that enables FIDO2/CTAP2 security keys over NFC' and is an app in the security & privacy category. There are three alternatives to Authnkey for Android, Android Tablet and Android Wear. The best Authnkey alternative is microG, which is both free and Open Source. Other great apps like Authnkey are BiTGApps and Google Play Services.
microG GmsCore is a free software reimplementation of Google Play Services. It allows applications calling proprietary Google APIs to run on AOSP-based ROMs like .


Google Play Services is a proprietary background service and API package for Android devices from Google. Google Play Services provides core functionality like authentication, contacts synchronization, and location based services.
