"I wish I could play the finger whistle."
"I tried it, but it didn't work at all."
"How do I get the sound to come out?"

Yes, it's hard to make a sound on your own with a finger whistle!
I want to be able to play the finger whistle at sports games, festivals, and parties! This is the app for you.

How to use
Easy to use, just blow hard into the iPhone's microphone.
If the ambient sound is too loud, please switch to button operation by turning on button input from the settings (gear button) in the upper left corner.

▼Functions
Volume control
Switching input Breath/button

With this app, you can freely manipulate the finger whistle to express a variety of emotions!