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Real store listing · independent assessment pending.

Whistle Blow

Daniel Asto

The best whistle app!

0.0 ★Store rating
—Downloads
4+Age rating
5 MBApp size
$0.99In-app purchases

About this app

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.…

Preview

Real screenshots from the store listing.

8 screenshots
Whistle Blow screenshot 1
Whistle Blow screenshot 2
Whistle Blow screenshot 3
Whistle Blow screenshot 4
Whistle Blow screenshot 5
Whistle Blow screenshot 6
Whistle Blow screenshot 7
Whistle Blow screenshot 8

Independent evidence report

Evidence and review signals

This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.

Store listing and review signals

What we measured

Each line is a measurement published as a measurement, never a verdict.

How these are measured

Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.

Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
Not assessed
No rating histogram has been captured for this app

In the package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.

Graded bands · predicate set 1.4 · how these are measured

What the analysis found

App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.

Methodology

No review themes cleared the reporting threshold.

Assessment & version history

App changes and Appworthy events in one timeline.

Store listing updated to version 5.0.

What this app sells

Useful store-disclosed pricing, kept below the app listing.

Business model$0.99

Prices and terms as disclosed by the store listing.