About this app
The mouth harp is a small folk instrument also known as a jaw harp or jew's harp. When you hold it to your mouth and change the size of your mouth cavity, the sound of the instrument changes, similar to a guitar played through a "wah wah" pedal. To play the mouth harp app: 1) Touch the iPhone screen to your lips. 2) Tap the thin end of the mouth harp to hear a "twang" sound. 3) Move your lips further apart or closer together to change the frequency response of the sound. If you're having trouble, tap the (?) icon to show the "hot spots" on the screen. To see how the app works before you buy it, to send feedback or to request help, please visit http://www.mouthharpapp.com. >>> If you have a problem or a suggestion, please contact me before writing a bad review. I have no way to respond or help you if you publish your complaints in a review, but I respond promptly to all emails. <<<
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. Updated for iOS 11 and iPhone X.
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 21, 2026 · 9:20 PM Free
Screenshots
