Nimbus: Sleep Sounds
Rain, Storm & Sleep Timer
Free · Designed for iPad. Not verified for macOS.
Layered rain, distant thunder and wind. All on dual independent sliders. No ads, no account, no paywall. Sleep timer up to 10 hours. More soundscapes coming soon.
Nimbus brings you rain, distant thunder, and wind on independent intensity and volume sliders. The components of a real summer storm, tuned exactly the way you want.
Most sleep sound apps have not changed in years. They are cluttered, slow to load, and full of ads that jolt you awake mid-session. Nimbus was built from scratch to be the opposite: no ads, no account, no paywall, and playing within a second of opening.
WHAT'S INSIDE
Summer Storm is Nimbus's first hand-crafted soundscape. Three independent audio layers; rainfall, distant thunder, and wind, each with its own dual sliders. Pull rain up, fade wind back, leave thunder as a low rumble. Save your preferred mix with a tap and it will be waiting next time you open the app.
The visualisation responds to what you hear. As audio layers shift, the animated storm scene shifts with them. It's an experience built to feel alive rather than like a static screensaver.
SLEEP TIMER
Set a timer from 1 minute to 10 hours. When time is up, audio fades out gradually rather than cutting abruptly, so you stay asleep. An optional alarm tone plays at the end of the timer if you want a gentle wake.
YOUR PREFERRED MIX, REMEMBERED
Heart any mix to save it as a favourite. Nimbus remembers your slider positions so you never have to rebuild the same storm twice.
BUILT FOR SLEEP AND FOCUS
Whether you need to fall asleep, stay asleep, block a noisy environment, or find a sonic backdrop for deep work, a layered storm is one of the most effective ambient sounds available. Rainfall masks irregular noise; distant thunder adds low-frequency texture; wind fills the upper register.
NO ACCOUNT, NO ADS, NO TRACKING
Nimbus has no ads, no in-app purchases, no account requirement, and no analytics tracking. Everything works fully offline, the complete app is bundled at install, so it plays the moment you open it with no loading spinners and no network needed.
MORE SOUNDSCAPES COMING
Summer Storm is the first chapter. Additional hand-crafted soundscapes are in development.
Nimbus works on iPhone and iPad running iOS 17 or later required.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
In this update:
• Minor bug fixes
The developer, Mitchell Down, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mitchell Down
- Size
- 69.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mitchell Down