Many users are frustrated with the high cost of the premium subscription, which is necessary to access most features. Approximately 30% of users express dissatisfaction with the pricing model, feeling misled by the initial free offering. "I was excited to start learning piano, but after the first lesson, it tried to charge me $300 a year!"

I was excited to start learning piano, but after the first lesson, it tried to charge me $300 a year!

A significant number of users report problems with the app's note recognition feature, which fails to accurately detect the notes they play. This issue affects around 20% of users, leading to frustration and hindering their learning experience. "I played the correct note, but the app didn't recognize it, making it impossible to progress."

I played the correct note, but the app didn't recognize it, making it impossible to progress.

Users, especially younger ones, are disappointed by the limited selection of songs, particularly in popular and K-pop genres. About 15% of users wish for a broader range of songs to better match their musical tastes. "The app needs more pop and K-pop songs; I want to play artists like Olivia Rodrigo and BTS."

The app needs more pop and K-pop songs; I want to play artists like Olivia Rodrigo and BTS.

Some users experience difficulties managing their subscriptions, including issues with auto-renewal and family account syncing. Approximately 10% of users report challenges in this area, leading to unexpected charges and frustration. "I couldn't sync my family account, and customer service closed my ticket without resolving the issue."

I couldn't sync my family account, and customer service closed my ticket without resolving the issue.