Microphone — Open Source Productivity App

Note: This app is no longer maintained, it's source repository has disappeard in 6/2025 – so there won’t be updates anymore.

Microphone is a simple app that outputs the sound of the built-in microphone.

To avoid acoustic feedback, the app works only when an audio cable is plugged in or a bluetooth audio receiver is connected to the smartphone.

The app is ad-free and has no additional settings, so it is easy to use.