About this app
Try the professional version of our app for developing your ear for music by intervals. In this version of the application you can play not only piano or guitar, but also bass, violin, cello, double bass. The professional version of the application is available on desktops and mobile devices. It is ad-free so you can concentrate fully on your studies. Before starting the lessons, you can choose the level of difficulty of the lessons, specify the intervals and the musical instrument, adjust the octaves and notes. Try to do ear training exercises regularly and systematically. If you have already started to study, then do not let yourself get bored and do not stop in development.
Latest release
What’s New
Improved application stability.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 8, 2026 · 11:22 AM $1.99
Screenshots
