Whistle - Loud Whistle Sound

Contains adsIn-app purchases
Content rating
Everyone
50+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Need a referee whistle right now? Just take out your phone and hold the button.

Whistle turns your phone into a loud, responsive whistle:
it blows only while you hold, and stops the instant you release -
just like the real thing.

★ FEATURES
• Press-and-hold blowing with instant stop
• 8 whistle sounds: 2 included (Whistle, Ambulance) + 6 PRO
(Train Horn, Air-raid Siren, Emergency Bell, Vuvuzela, Rescue Whistle, Air Horn)
• TRIPLE blast and SOS emergency patterns
• Neon sound-wave visualizer that moves while the sound plays
• Volume control and favorites
• Korean / English

★ PRO SOUNDS
Unlock all 6 PRO sounds forever with a one-time purchase,
or open PRO for 24 hours by watching a short ad.

★ GREAT FOR
Referees and coaches, dog training, attention calls,
safety signaling and playing with kids.

★ NOTE
In a real emergency, always use official emergency services first.
Mind your surroundings and hearing at high volume.
Your phone becomes a whistle — 8 loud sounds and an SOS pattern, hold to sound.
Updated on
Sep 3, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
(주)디케이시퀀스
dkseq7@gmail.com
중문상로 34, 1002호(중문동, 중문일성드림타운) 서귀포시, 제주특별자치도 63546 South Korea
+82 10-9165-6059

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