There are plenty apps for recorder, so why to choose this one? Because It has several features that make it a useful for all players:* key signature/scale settings* Bass and treble clef* Recorder grips (Baroque and German)* Tin whistle grips* The app can listen to the player and show the played note and its grip* Trill grips for recordersSupported languages:* Basque* Czech* English* French* German* Hebrew* Polish* Spanish* TurkishFeel free to send me translation into your language. I will include it.The application has the same features as its free version. Buying a paid version will get rid of it ads and support its future development.