PianoMate is an iPhone application designed to help users learn and play their favorite piano pieces. With an on-screen keyboard and fingering hints, users can easily follow along and play music. The app offers both piano and harpsichord sounds, allowing for a versatile playing experience.

One of the standout features of PianoMate is its ability to practice right and left hand separately. This is especially useful for mastering difficult chords and ornaments. The app also includes a built-in metronome, which allows users to adjust the playback speed and follow tempo alterations of the piece.

For focused practice, PianoMate offers a "Repeat Fragment" mode where users can choose a specific section of a piece to practice. Additionally, users can connect their MIDI keyboard or digital piano to the app for the best assistance in their piano lessons.

PianoMate provides a number of free pieces to get started, but some pieces are available as separate in-app purchases. To access the full Sheet Music Library, users can opt for an auto-renewable subscription. The subscription lasts for 1 month and costs $2.99 per month.