Perfect Ear - Ear Trainer is an iPhone app that offers a unique and fun way of learning music theory and ear training. This app is perfect for beginners and professionals alike. It offers high-quality ear training, rhythm training, solfège lessons, music theory, and note reading lessons that will make you a better musician.

The app's key feature is its customizable exercises. You can create your own ear training or rhythm training exercises, as well as custom chords, scales, and rhythm patterns. The app also offers beginner-friendly articles on music theory. It has melodic dictation exercises, a sight-reading trainer, an absolute pitch trainer, and a note-singing trainer.

All exercises can be performed with a piano or guitar. The app offers a fully-fledged scale dictionary and is recommended by music teachers worldwide.

In conclusion, Perfect Ear - Ear Trainer is the best free ear training app out there. Download it now and start your journey towards becoming a better musician.