Support

SleepMaster Help & Support

Frequently Asked Questions

Q: Why is there no sound when I tap some sounds?

A: Sounds marked with a lock require the Premium upgrade. Tap the locked card to open the upgrade screen. For other sounds, check that your device is not muted and that the silent switch is off, then restart the app if the problem persists.

Q: How do I play multiple sounds at once?

A: Tap multiple cards on the home screen to layer them; up to 10 can play together, each with its own volume slider.

Q: How do I set the auto-stop timer?

A: Tap the clock button on the bottom control bar (it appears once something is playing), pick hours and minutes, then tap Start. The remaining time is shown on the bottom bar and the audio fades out automatically when it reaches zero.

Q: Can I change the fade-out duration?

A: Yes. Go to Settings → Playback → Fade-out duration and choose 5, 8, 10, 15, or 30 seconds.

Q: Can it keep playing after the screen locks?

A: Yes. Background playback is supported, and you can control play/pause from the lock screen or Control Center.

Q: How do I save a combination I like?

A: Tap 混音和入库 (top-left of the home screen) to open the save sheet. The name field is pre-filled; edit it if you like, then tap 保存到我的音库 (Save to My Library). You can rename or overwrite an entry later by long-pressing it in 我的音库 (My Library). Up to 30 items are kept; the oldest is removed automatically when you exceed the limit.

Q: Can I reorder the sound list?

A: Yes. Open the sort view from the home screen, then drag the sounds into your preferred order. Use 恢复默认值 (Restore Defaults) to undo your custom order.

Q: The app remembers what I was playing — how do I use or remove that?

A: On a fresh launch, a Continue Last Session bar appears at the top of the home screen. Tap it to restore the same combination and volumes, or tap Clear to dismiss it. It only appears once per launch and disappears as soon as you tap any sound yourself.

Q: How do I unlock Premium?

A: Go to Settings → 高级版 (Premium), then tap 立即解锁 (Unlock). The price shown is the current App Store price for your region. If you already purchased it on another device, use 恢复购买 (Restore Purchase) on the upgrade screen.

Q: What happens to my data if I delete the app?

A: All mixes, favorites, ordering, and settings are stored only on your device and are deleted with the app. We have no copy of them. If you reinstall, use Restore Purchase on the upgrade screen to regain Premium access.

Q: Does it collect my data?

A: No. The app is fully offline, requests no device permissions, and collects no personal data. Purchases are handled entirely by Apple.

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