Very professional piano simulator, you can play piano anytime, anywhere with your phone.
There is also a metronome function to adjust the tempo for many instruments.

【 Subscription 】
1. Users can unlock all functions only with a paid subscription.
2. The subscription fee will be deducted from the iTunes account when the user confirms the purchase. It can be used for a three-day free trial and can be automatically renewed for $29.99 / quarter.
3. Users can turn off automatic renewal 24 hours before the end of the current subscription, otherwise it will be automatically renewed.
4. The Apple ID of automatic renewal subscription will be automatically deducted from the iTunes account 24 hours before the expiration of each billing period and the corresponding validity period will be extended.
5. Users can manage the subscription service, that is, they can go to the user account to set and close the automatic subscription after purchase.
Usage Agreement：
https://www.yuque.com/docs/share/da321f68-99d7-4d6d-bea7-85939d5216b7
Privacy Policy：
https://www.yuque.com/docs/share/0239a07b-964e-494e-82d4-3983189eafa9