MyMusicTheory is an excellent music theory practice app designed for Android users. The app, developed by myrApps s.r.o., is available for free and falls under the Education & Reference category. It covers a broad range of music theory topics and helps users to prepare for Levels 1-5 of the Associated Board of the Royal Schools of Music (ABRSM) exams.

The app offers a comprehensive music theory syllabus, including topics such as key signatures, intervals, chords, scales, diatonic chord degrees, and rhythm exercises. It also includes various note naming schemes such as English, German, and Latin. The app supports multiple clefs, including treble, bass, alto, baritone (C or F), french violin, mezzo-soprano, soprano, and tenor.