[Android & iOS] $0 Ear Cat - Fun Game for Ear Training (Was $6.49) @ Google Play & iTunes

Eat Cat on iTunes

A game to train the ears - great for musicians. Rated 4.3 with over 10k installs and no IAP.

Ear Cat is a fun game created to develop your musical ear, with 80 levels that get progressively more challenging.
An intuitive approach to recognising intervals, for improving your solfege and recognizing pitches in relation to a tonal center. It is also designed to enhance your musical memory with exercises based on classic melodies.

Helpful and entertaining - for beginners and skilled musicians alike.
Ear Cat completes the popular Melody Cats series. (Rhythm Cat, Treble Cat, Bass Cat)
Developed in collaboration with professional musicians and educators.
Like music? like cats? You'll love this game.