About this app
An introduction to the sounds of different musical instruments. Find out how they look. Try to guess how sound musical instruments in the quiz. Our program will bring pleasure to you and your family.
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. 1. Background music 2. Add sound effects 3. Cup for winner! 4. Support for iPad pro 5. Optimized for iOS 9
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 22, 2026 · 4:37 AM $0.99
Screenshots
