# Don't Open: Alarm Prank App > Ultimate prank alarm! Loud sirens, math puzzles to stop. Fool your friends! Canonical page: [https://chrome-stats.com/d/com.trap3.mathalarm21](https://chrome-stats.com/d/com.trap3.mathalarm21) ## Overview - **ID:** `com.trap3.mathalarm21` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Axbridge - **Category:** ENTERTAINMENT - **Downloads:** 80 - **Version:** 1.0.0 - **Last updated:** 2026-08-28 - **First published:** 2025-06-27 - **Publisher country:** BG - **Size:** 20 MB - **Data as of:** 2026-09-08 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.trap3.mathalarm21) - **Privacy policy:** [https://github.com/BGG-creator/privacypolicy/blob/main/Privacy%20Policy%20for%20%22don't%20open%22](https://github.com/BGG-creator/privacypolicy/blob/main/Privacy%20Policy%20for%20%22don't%20open%22) ## Description Pull the ultimate prank on your friends with Don't Open, the hilarious alarm app that creates chaos and laughter!

Hand your phone to a friend and watch their panic as a deafeningly loud alarm suddenly blasts. The only way to silence it? Solve 3 math problems under pressure while everyone watches. Perfect for parties, social challenges, and viral moment creation.

HOW THE PRANK WORKS
Set up your trap in seconds, then innocently hand your phone to an unsuspecting friend. The moment they open the app:

1. A LOUD alarm or siren starts blaring at maximum volume
2. They must solve 3 math calculations to make it stop
3. They have 100 seconds before the timer runs out
4. Everyone around them watches the panic unfold
5. Perfect for parties, hangouts, or anywhere you want laughs

Customize everything to make each prank unique and unpredictable.

PRANK CUSTOMIZATION
🔊 Adjustable volume from mild to ear splitting
⏱️ Custom timer: 30 seconds to 999 seconds
🎵 Upload custom alarm sounds or embarrassing audio
🔐 Password protection for instant stop
🎨 Multiple themes to disguise the prank
🧮 Difficulty level: impossibly hard

VIRAL PRANK SCENARIOS
📱 The Classic: "Can you hold my phone?" BOOM. Instant chaos.
🎉 Party Mode: Set it up and see who falls for it first
🏫 Study Break: Lighten the mood with friends
📸 Social Media Gold: Record reactions for TikTok or Instagram
🎁 The Gift: Wrap your phone and make them open it
😈 Public Challenge: Dare friends to open it in quiet places

PERFECT FOR
Friend groups who love practical jokes
Social media creators making prank content
People who enjoy harmless chaos
Anyone looking for the perfect icebreaker
Pranksters wanting customizable options

WHY FRIENDS WILL HATE AND LOVE THIS
😱 Genuine panic and surprise reactions
😂 Hilarious watching them solve math frantically
🎥 Creates shareable viral moments
🎯 Simple setup, maximum impact
🔄 Endless replayability with different settings
👥 Perfect for group settings and parties

SAFETY & RESPONSIBLE USE
Don't Open is designed for harmless fun between friends. Use good judgment:
- Don't use in emergencies or sensitive locations
- Be mindful of volume in quiet spaces
- Consider your friend's sense of humor
- Great for parties, not serious situations
- Always reveal it's a prank afterward

APP FEATURES
🚨 Multiple alarm and siren sounds
🎼 Upload your own custom audio files
🧮 Math puzzle challenge to stop alarm
⏰ Customizable countdown timer
🔊 Volume control from quiet to maximum
🔐 Optional password override
🎨 Different visual themes
📱 Works offline, no internet needed
⚡ Instant setup in seconds
🎭 Disguised as normal app until activated

THE ULTIMATE FRIEND PRANK
Forget boring prank apps with fake cracks or silly sounds. Don't Open delivers real panic, real laughter, and unforgettable reactions. The math puzzle twist means they can't just hit a button. They have to think under pressure while everyone watches and laughs.

Perfect combination of chaos, challenge, and comedy. Whether at a party, hanging with friends, or creating a hilarious moment, Don't Open delivers every time.

Setup takes 10 seconds. Laughter lasts forever.

WHAT USERS SAY
"My friend's face when the alarm went off was PRICELESS"
"Used this at a party, everyone wanted to try it!"
"The math problems under pressure make it funnier"
"Finally a prank app that actually works"

Download Don't Open now and start pranking your friends. Just don't let THEM download it first, or you'll be the one panicking!

Fair warning: Your friends might get revenge. Worth it. ## Rankings - #2,058,608 — Overall ## Permissions and access ### Permissions - `android.permission.READ_MEDIA_AUDIO` - `com.android.vending.CHECK_LICENSE` - `com.trap3.mathalarm21.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Prank App: Sounds, Calls, Rec](https://chrome-stats.com/d/sergiok.ElectricCalc.ultimate_prank) — 25,731 users - [Hilarious Sound Fun Prank App](https://chrome-stats.com/d/com.iamoutawir.pranksoundgame) — 88 users - [SoundPrank - مقالب صوتية](https://chrome-stats.com/d/com.appnew.apptools.funnysound.trustapps.utilities.soundprank) — 88 users - [Prankster: Any Sound Prank](https://chrome-stats.com/d/com.tstudio.prankity.sound) — 2,986 users - [Alert Prank Alarm Soundboard](https://chrome-stats.com/d/nuclear.warning.alarm.emergency.siren.sounds) — 163,262 users, 3.76 / 5 - [Panic button - prank](https://chrome-stats.com/d/com.nechapps.panicbutton) — 128,483 users, 2.70 / 5 - [Crazy Funny Sounds Prank](https://chrome-stats.com/d/com.apptoentertain.crazy.funny.sounds) — 7,947 users - [Sound Push: Prank Your Friends](https://chrome-stats.com/d/com.soundpush.sender) — 19 users - [Nuclear Siren sounds](https://chrome-stats.com/d/com.sario.siren) — 85,285 users, 4.66 / 5 - [Prank Frenzy](https://chrome-stats.com/d/com.soundprank.prank.frenzy) - [Funny Prank Sounds : Prankify](https://chrome-stats.com/d/com.airhorn.haircut.fart.funny.pranksounds.prankify) — 202 users - [Ultimate Prank Sounds](https://chrome-stats.com/d/com.yieldmonk.ultimatepranksounds) — 180 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.trap3.mathalarm21)