https://t.me/micguitartunerbot
(source: https://github.com/hedhyw/telegram-mic-guitar-tuner/commit/22603a82517546a8cd2ca41ac518fe92a96debc9)

a Telegram Mini App that helps guitarists tune their guitars. It uses the microphone to determine the frequency of the sound and helps to correctly adjust each string.

https://t.me/pictionaryitbot
(source: https://github.com/hedhyw/telegram-pictionary-it/commit/ac75254747fc207c7ca5f3dc16abc91aea863ed0)

a Mini App online game in which players can draw and guess pictures.

Demo gifs

These apps are useful and enjoyable.

Guitartuner looks useful :)

The pictionary one is really cool

I like the tune app! As improvement it should allow the user to select the string! Didn't know that the mini app could access the microphone!

I really like the idea of the drawing app, Being able to customize color, width and etc would be nice addition. Also I find it a little bit harder to use on mobile devices, but then again it's briliant, keep up the good work.