Rain Synth: Sleep Sounds
White noise rain generator
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Free with no ads. RainSynth helps you to fall asleep with realtime soundscapes and white noise. Shape the sound by dragging the glowing cursor across the pad, or let dynamic motion take you through an ever-changing ambience.
Six synthesisers. One gesture.
• RainSynth — layered rainfall with variable intensity and texture
• ForestSynth — filtered natural noise with woodland character
• FireSynth — crackling warmth from soft embers to a roaring blaze
• OceanSynth — coastal soundscape from distant shore to crashing surf
• BreathSynth — guided breathing with a slow, resonant rhythm from subtle background to deep practice
• NoiseSynth — sculpted noise across the full spectrum, from warm brown rumble to white noise to crisp violet air
Features:
• 100% free. No ads. No in-app purchases
• Real-time audio synthesis — every sound is generated live, never repeated
• XY pad control — drag to shape intensity and texture simultaneously
• Dynamic mode — hands-free slow wander through the soundscape
• Sleep timer — auto fade-out from 30 minutes to 4 hours
• Reactive visuals — the interface responds to every drop, crackle, and wave in real time
• Three preset positions per synth for quick access
• Dark minimal UI designed for nighttime use
Privacy: No data collected, no accounts, no tracking.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added cool visual effects to NoiseSynth.
Improved sleep timer so it fades out more gradually.
The developer, Kaine Shutler, 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
- Kaine Shutler
- Size
- 2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 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 Kaine Shutler