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Screenshots

  • Lull: Focus & Sleep Sounds screenshot 1
  • Lull: Focus & Sleep Sounds screenshot 2
  • Lull: Focus & Sleep Sounds screenshot 3
  • Lull: Focus & Sleep Sounds screenshot 4

About Lull: Focus & Sleep Sounds

Lull turns your phone into a calm, private soundscape for focus, relaxation and sleep — and it works completely offline. Tap any sound to start, layer several together, and fine-tune the volume of each one to build your perfect mix. Rain on a campfire night, ocean waves with a soft breeze, or pure brown noise for deep work — it's up to you. KEY FEATURES • 12 ambient sounds you can mix freely — rain, heavy rain, ocean, stream, wind, campfire, night, cafe, fan, and white / pink / brown noise • Independent volume slider for every active sound • One-tap mixes like "Rainy cafe", "Deep focus" and "Sleep" • Sleep timer that gently fades the sound out so you can drift off • Pomodoro mode — sounds play while you focus and pause on breaks • Keep-screen-on option for nightstand use • 100% offline — no streaming, no account, no data leaves your device • Light / dark themes and English / Japanese Just calm sound whenever you need it.

What’s new

Version 1.0.1 · Updated July 20, 2026

Fixed minor bugs.

App privacy

The developer, Yuki Okawa, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Lull: Focus & Sleep Sounds

Looking for apps like Lull: Focus & Sleep Sounds? Here are 6 similar apps on the App Store. The highest rated is Lull — Sleep & White Noise (5.0/5), and all 6 are free to download.

Lull: Focus & Sleep Sounds vs. alternatives
App Rating Price Last updated
Lull: Focus & Sleep Sounds – Free July 20, 2026
Lull AI: Sleep Tracker & Coach – Free Jun 10, 2026
Lull: Baby Sleep Coach – Free Sep 24, 2026
Lull — Sleep & White Noise 5.0 / 5 (1) Free Aug 29, 2026
Lull: Sleep Sounds & Relax – Free Jul 10, 2026
Deep Sleep Sounds - WaveLull – Free Nov 8, 2025
The Standard ‎ – Free Apr 13, 2026