Slumbertone

Armyrunner Studios, LLC

About this app

Slumbertone is a clean, ad-free noise machine for sleep, focus, and calm. Choose white, pink, green, or brown noise—seamlessly looped with smooth crossfades and a modern glass aesthetic. Set a countdown or a specific stop time; Slumbertone will fade out gently when it’s time to rest.

• White, pink, green & brown noise
• Seamless looping with smooth crossfades
• Timers: countdown or stop-at-a-time with gentle fade
• Plays in the background and with the silent switch
• iPhone & iPad layouts; light & dark themes
• No accounts, no ads, no tracking

Why it helps
Consistent color noise masks distractions, smooths out environmental sounds, and can make it easier to fall asleep, concentrate on deep work, or relax.

How to use
Pick a noise color, press Play, and set a timer (or a stop time). Adjust appearance with the sun/moon toggle. Slumbertone continues in the background so you can lock the screen or switch apps.

Notes
• Works offline once installed
• Headphones or a bedside speaker recommended
• Slumbertone is not a medical device

What’s new

This update gives Slumbertone a fresh coat of polish and a stronger foundation:

* Timer sheets now sit clear of the gesture bar, so buttons are always easy to reach.
* Upgraded to the latest app framework for better performance, reliability, and compatibility with the newest devices.
* Cleaned up under the hood for a leaner, faster app.

As always: pick a sound, set your timer, and sleep well.