Ear Trainer by Songsterr

Ear Trainer is a series of fun field-tested exercises for mastering your essential aural skills.
The training feels like an engaging game. You hear a melody and try to match it using a virtual piano keyboard.
Beginning with the simplest one or two note phrases you’ll gradually learn the language of music! Where notes are letters, short phrases or motives are words, and longer phrases are whole sentences.
You’ll step by step learn to play music by ear, follow the rhythm, and use accents. We’ll start with just five notes of pentatonic — the easiest, most important and popular scale in the world music culture.
It won’t take long to see that the app is much more efficient and exciting compared to boring conventional interval, scale, and chord exercises.