Random Sound Timer
Contains ads
Everyone
info
5+
Downloads
About this app
Random Sound Timer: the ultimate prank app for hidden sound pranks. Pick a sound, set a timer, and hide your phone. It fires off surprise noises on a schedule while the screen looks completely off. The perfect practical joke app for messing with friends, roommates, or coworkers.
How it works:
Choose a sound: use a bundled sound effect or import your own audio file
Set the interval: from seconds to minutes between each random sound
Hit Start, then go stealth: a full black overlay disguises the screen as off or locked
Long-press to reveal the hidden timer whenever you need to check on it or stop it
Keep them guessing:
Turn on Interval Variation and each countdown randomly runs shorter or longer than the time you set, so the prank sound never fires on a predictable beat.
Build your own sound library:
Import any audio file from your device and build a personal sound effects collection. Sort by name or date, multi-select and delete in bulk, and preview any sound before you commit.
Stay hidden:
Fullscreen stealth mode with a black overlay that only unlocks on long-press
Optional screen pinning locks the app in place so a stray swipe can't blow your cover
Volume control up to 200% so the sound cuts through, even in a noisy room
Made to fit you:
Supports Material You dynamic theming on Android 12+, matching the app to your device's wallpaper-based color palette.
Random Sound Timer is a harmless prank and joke app built for fun: hide a random beep in a friend's backpack, set off a mystery noise during a meeting, or just mess with your roommate.
For entertainment purposes only. Use responsibly.
How it works:
Choose a sound: use a bundled sound effect or import your own audio file
Set the interval: from seconds to minutes between each random sound
Hit Start, then go stealth: a full black overlay disguises the screen as off or locked
Long-press to reveal the hidden timer whenever you need to check on it or stop it
Keep them guessing:
Turn on Interval Variation and each countdown randomly runs shorter or longer than the time you set, so the prank sound never fires on a predictable beat.
Build your own sound library:
Import any audio file from your device and build a personal sound effects collection. Sort by name or date, multi-select and delete in bulk, and preview any sound before you commit.
Stay hidden:
Fullscreen stealth mode with a black overlay that only unlocks on long-press
Optional screen pinning locks the app in place so a stray swipe can't blow your cover
Volume control up to 200% so the sound cuts through, even in a noisy room
Made to fit you:
Supports Material You dynamic theming on Android 12+, matching the app to your device's wallpaper-based color palette.
Random Sound Timer is a harmless prank and joke app built for fun: hide a random beep in a friend's backpack, set off a mystery noise during a meeting, or just mess with your roommate.
For entertainment purposes only. Use responsibly.
Updated on
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.
This app may share these data types with third parties
Location, Personal info and 3 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted
What’s new
Initial release! 🎉
• 9 built-in sounds: smoke detector, metal pipe, vine boom and more
• Custom sounds: import your own audio files or link entire folders
• Randomized interval variation: keep it unpredictable within a range you set
• Stealth mode: black overlay hides the timer until you long-press to reveal it
• Screen pinning: lock the app so accidental swipes don't give it away
• 9 built-in sounds: smoke detector, metal pipe, vine boom and more
• Custom sounds: import your own audio files or link entire folders
• Randomized interval variation: keep it unpredictable within a range you set
• Stealth mode: black overlay hides the timer until you long-press to reveal it
• Screen pinning: lock the app so accidental swipes don't give it away
App support
About the developer
Asan Matei-Bogdan
support@rodoapps.com
Strada Plutonier Petre D. Ionescu Nr.2
Bl.6 Sc.1 Et.8 Ap.45
032394 Sector 3
Romania
