Tĩnh Lặng — Support
Need help with Tĩnh Lặng? We're happy to help.
Contact
Email support@sakura5.app — a real person reads it, usually replying within a couple of days. Tell us your device model and OS version and we'll get to the bottom of it faster.
What Tĩnh Lặng is
A Vietnamese meditation and sleep app for iPhone: four guided meditations, four bedtime stories, five all-night ambient spaces, a guided breathing rhythm, and a Studio that renders a short video from a session. The interface is available in Vietnamese and English (Settings → language); the narration is in Vietnamese. Everything is bundled in the app, so it works with no internet connection and no account.
Frequently asked
- Does it cost anything? No. Version 1.0 is free in full, with no in-app purchases, no subscription and no paywall.
- Do I need an account or the internet? Neither. There is no sign-in of any kind, and all audio and video is bundled — the app works in aeroplane mode.
- How do I delete my data? Settings → “Xoá toàn bộ dữ liệu” erases your listening history and streak. Deleting the app removes everything it stored as well.
- Can I turn the daily reminder off? Yes, in Settings. It is a local notification, at most one a day, and switching it off removes it.
- Audio stops when I lock the screen. Playback is meant to continue with the screen off. If it stops, check that Low Power Mode or a Focus setting isn't suspending it, and email us with your device and iOS version.
- Saving a Studio video failed. The app needs add-only permission for Photos. Check iPhone Settings → Tĩnh Lặng → Photos and allow “Add Photos Only”.
- Is this medical advice? No. Tĩnh Lặng is for relaxation only and is not a substitute for professional care.
Common questions
- Restore a purchase: open the app's paywall and tap “Restore Purchases”.
- Manage a subscription: iPhone Settings → your name → Subscriptions.
- Bug or feedback: email us with your device model and iOS version.
Frequently asked questions
Does Tĩnh Lặng cost anything?
No. Version 1.0 is free in full, with no in-app purchases, no subscription and no paywall.
Do I need an account or the internet?
Neither. There is no sign-in, and every meditation, story and ambient sound is bundled in the app, so it works in airplane mode.
What language is it in?
The narration is in Vietnamese. The interface is available in Vietnamese and English.
Is Tĩnh Lặng medical advice?
No. It is a relaxation and sleep app, not a medical device, and not a substitute for professional care.
Who makes Tĩnh Lặng?
Tĩnh Lặng is made by Sakura5, an independent app studio that builds focused, privacy-first apps for iPhone, iPad and Mac. Support: support@sakura5.app.