録音メモ is an Android app developed by Shizuha. It is a prototype created for studying design and improving a previous call memo app. As an app, it functions as a voice recorder.

The app offers the following features:

1. Voice Recording: Users can record audio using the app's voice recorder.

2. Playback: Users can play back the recorded audio.

3. File List: The app displays a list of recorded files for easy access.

4. Adding Memos: Users can add memos while playing back the recorded audio.

5. Recording Format Settings: Users can choose between WAV and 3GP formats for recording.

Please note that the app may not function properly on some devices. If you encounter any issues, it is recommended to uninstall the app from your device.