[busymom0]

I made a similar app for both iPhone and Android called Note Flash. Works with microphone and MIDI:

https://play.google.com/store/apps/details?id=com.pranapps.n...

https://apps.apple.com/ca/app/note-flash-music-sight-reading...

[IncreasePosts]

Needs to be updated for a modern version of Android:(

[busymom0]

Let me update it to the latest SDK this weekend. If you email me (in my profile), I can reply to you when update is available.