Frequently Asked Questions
Why isn't sound playing when my screen is locked?
Lull uses background audio mode, so it should continue playing when your screen is locked. If it stops, try this: open Settings → Lull → make sure Background App Refresh is enabled. Also check that you haven't set Low Power Mode, which can sometimes interrupt background audio. If the problem persists, force-quit the app and reopen it.
How do I restore my Premium purchase on a new device?
Open Lull → Settings → tap "Unlock Premium". On the paywall screen, tap "Restore Purchases." Your purchase is tied to your Apple ID and will restore automatically at no charge. Make sure you're signed in with the same Apple ID you used when you originally purchased.
What's the difference between free and premium sounds?
All algorithmically generated noise sounds (white, pink, brown, green, blue noise) are completely free and always will be. Premium unlocks the full nature, urban, baby, and weather sound libraries: rain, ocean, heartbeat, fireplace, and more. You can preview any locked sound for 30 seconds before purchasing.
Sound stopped when my headphones disconnected. How do I prevent this?
This is a configurable setting. Go to Settings (gear icon on the home screen) → turn off "Pause on Headphone Disconnect." When this is off, audio continues through your phone's speaker when headphones disconnect.
How do I set a sleep timer?
While a sound is playing, tap the mini-player at the bottom to open the Now Playing / Mixer screen. Tap "Sleep Timer" to set a duration. You can choose quick picks (30m, 1h, 2h, 4h, 8h) or a specific stop time. The app will fade out over the duration set in Settings → Fade Out.
How do I save a custom mix?
Build your mix in the Mixer screen (tap the mini-player to open it, then add sounds and adjust volumes). When you're happy with it, tap "Save as Mix" at the bottom. Give it a name. Your saved mixes appear in the "Your Mixes" section on the home screen.
Does Lull work without Wi-Fi?
Yes, completely. All sounds are stored on-device. Lull never streams audio. It works in airplane mode, in areas with no signal, anywhere. No internet connection is ever required to play sounds.
Is there a subscription? Will I be charged again?
No subscription. Lull Premium is a one-time purchase of $5.99. You are never charged again. There is no renewal, no free trial that auto-converts, no annual plan. Pay once, keep it forever.
Contact
Didn't find your answer above? Email us at support@respirix.app and we'll get back to you as quickly as we can.
When writing in, it helps to include your iOS version and the Lull version number (found in Settings → About → Version).