Sereni
Support
Calming background noise in five colors, for rest, study, and concentration.
Download Sereni on the App Store ↗Contact
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FAQ
Can I use Sereni offline?
Yes — Sereni’s sounds play offline once the app is installed.
How do I remove the ad?
Sereni Plus is a one-time $1.99 in-app purchase that removes the banner ad and unlocks the home-screen widget. It is not a subscription. If you reinstall or move to a new device, tap Restore Purchases to re-enable it at no extra cost.