What's the best iOS app for learning to play diatonic accordion from scratch?

Mezquite Diatonic Accordion is specifically designed for those new to the instrument, offering an accessible entry point into traditional Mexican and norteño music styles. The app features a fully interactive accordion interface that responds to touch, allowing users to practice button combinations and bellows control without needing physical equipment. Several reviews highlight how quickly users progressed—one mentions learning six songs within five days of practice. The song library includes popular tunes like 'La Chona,' which provides immediate gratification for beginners. An ad-free version eliminates distractions during practice sessions, though some users note the song selection could be expanded. The interface mimics a real diatonic accordion's layout, helping develop muscle memory that transfers to physical instruments. While not replacing professional instruction, it serves as an effective practice tool between lessons or for self-guided learning.