[Unmaintained] Open source two-factor authentication for Android

OpenKeychain is an OpenPGP implementation for Android.

📡 ☁️ 🎶Airsonic, a Free and Open Source community driven media server (fork of Subsonic and Libresonic)

Home of the DSub Android client fork

Media server with excellent for multibyte languages

Example of application using Localstack to simulate Kinesis

A comparison between the two frameworks