Blow Whistle turns your iPhone into a crisp, realistic whistle, no hardware needed. Trigger it your way: blow into the mic, shake your device, tap the screen, or remotely trigger it from your Apple Watch. Perfect for getting attention, coaching, pranks, or quick sound effects.
Dial in exactly how you want it to respond with adjustable microphone sensitivity and full volume control. Pick your favorite whistle sound and, if you like, display a live mic level meter for visual feedback.
Features:
- Blow-to-whistle with adjustable mic sensitivity
- Tap or shake to trigger—no mic required
- Apple Watch support: trigger from your wrist
- Choose from multiple whistle sounds
- Volume control for any environment
- Optional on-screen mic level meter
- Works offline, lightweight, and fast
Privacy-Friendly:
- Microphone access is only used for the blow-to-whistle feature. You can still tap, shake, or use Apple Watch without granting mic permission.
Note:
Blow Whistle is for fun and everyday use. It is not a substitute for safety devices or emergency signaling.
Compatibility:
- iPhone and iPad
- Apple Watch (requires paired iPhone)
Whistle starts and then won't stop no matter how many times you hit the silence button. I imagine that was meant as a joke??? Why is it no one can just make a simple app that will allow you to push a button and make a whistle sound that stops when you release the screen button??!!!
Just ok...
Cmdub1233456
This app would be great if you had the option to turn off the "blow" choice as well... Just holding the phone caused it to constantly whistle, which wasn't helpful when using it to start a PE race! Even with the sensitivity bar, it was either all or nothing.
Doesn't work properly
HalfDozenPlusOne
I purchased this app for my iPhone 6 Plus to help a young child do the HPVT. Every little sound in the room made the whistle go off. Blowing, however, did not.
Does what it says.
<<JC>>
Sensitivity could be stronger, even with the adjustment bar, but it does what it says.
Accessibility Updates
- Full VoiceOver support for all interactive elements
- Auto-disables blow sensor when VoiceOver is on to prevent speech from triggering the whistle
- Respects Reduce Motion by skipping the shake animation
Version 5.0
The developer, Daniel Asto, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
