Whistle Blow vs RefMatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Whistle Blow
Transform your device into a realistic whistle with multiple triggering options. Adjust sensitivity, volume, and choose from various sounds for attention-getting, coaching, or sound effects. Works offline and is privacy-friendly.
- Blow-to-whistle with adjustable mic sensitivity
- Tap or shake to trigger
- Apple Watch remote triggering
- Multiple whistle sound options
- Adjustable volume control
- Optional on-screen mic level meter
- Offline functionality
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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 your iPhone from your wrist, or whistle right from the watch when your iPhone is out of reach - Siri, Shortcuts and Action button support (iOS 16 or later) - 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)
RefMatch
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RefMatch is the ultimate Apple Watch app built exclusively for soccer referees. Features include: • Match timer with customizable duration • Yellow and red card management • Score tracking with quick adjust • Team renaming • Match reset with one tap Designed for focus and speed, RefMatch helps you stay in control without pulling out your phone. Compatible with all modern Apple Watch models. No iPhone required. Get back to the pitch. Stay in control. Ref smarter.
Screenshots
Verdict
The clearest difference is price: RefMatch at Free against Whistle Blow's $0.99. Whistle Blow's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
RefMatch is free to download; Whistle Blow costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Whistle Blow | RefMatch |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 20.0% of reviews | — |
| Update frequency | Every 8 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Asto | Henrique Bersani |
In-app purchases
Whistle Blow
No in-app purchases
RefMatch
No in-app purchases









