Wrench13

Key features :
1. Featured piano repertoire, soothing and peaceful
2. The volume ratio of background sound and piano music can be adjusted to suit everyone's habits
Subscribe to User Benefits
1. Subscribers can unlock all background music resources
Auto-renewing membership instructions:
1. Subscription period: 1 month (continuous monthly membership), 3 months (continuous quarterly membership), 12 months (continuous annual membership)
2. Subscription price: continuous monthly product is $0.99 per month, continuous seasonal product is $2.49 yuan per quarter, and continuous annual product is $8.49 yuan per year
3. Payment: After the user confirms the purchase and pays, it will be credited to the iTunes account
4. Renewal: Apple iTunes account will be deducted within 24 hours before expiration, and the subscription cycle will be extended by one subscription cycle after the deduction is successful
5. Cancellation: If you need to cancel the renewal, please manually turn off the automatic renewal function in the iTunes/Apple ID settings management 24 hours before the current subscription period expires
6. Privacy Policy: https://boxopened.github.io/privacy.html
7. User Protocol: https://boxopened.github.io/user_protocol.html
8. Auto Renewal Membership Service Agreement: https://boxopened.github.io/autorenew_agreement.html