Privacy Policy

Seren: Rain Storm Sleep Sounds

Last updated: 7 November 2026

Seren plays rain, thunderstorm and white noise sounds for sleep, on iPhone and iPad. It's made by SGWNI, a one-person app studio (“I”, “me”). This policy explains what information the app handles and where it goes.

In short

• Your mixes, listening history, alarms and settings stay on your device. I never receive them.
• There's no account to make.
• The app counts how it's used, anonymously, with TelemetryDeck.
• Seren Premium is sold through the App Store, and RevenueCat checks whether you have it.
• There's no advertising, no tracking across other apps or websites, and nothing is sold or shared.

On your device

Your saved mixes, volumes, the nights you listened and for how long, your favourite sounds and your settings are stored in the app on your device, and shared with Seren's widgets on the same device. Bedtime reminders are notifications scheduled on your device, and the wake-up alarm is set with iOS's own alarms. None of this is sent to a server. It's included in your device's backups like any other app's data, and deleted when you delete the app.

Anonymous usage statistics

Seren uses TelemetryDeck to count how the app is used: for example, that the app was opened, that onboarding was finished and which sound was chosen, that a mix was played or saved, that bedside mode was opened, that the alarm was turned on or off, or that the Premium screen was shown or closed. Each signal also carries general details such as the app version, iOS version, type of device and language. TelemetryDeck doesn't collect names, email addresses or locations, and the identifier it uses is anonymised before it leaves your device.

Subscriptions

Seren Premium is an auto-renewing subscription sold through the App Store. Apple handles payment, so I never see your payment details, name or Apple Account. The app uses RevenueCat to check whether you have Premium: RevenueCat receives your App Store purchase receipt, basic device information and a random identifier created by the app.

Your rights

Depending on where you live, including under the UK and EU General Data Protection Regulation, you have the right to ask what information is held about you, to have it corrected or deleted, and to object to how it's used. Your listening history never leaves your device, so I hold none of it. I use the anonymous statistics because it's in my legitimate interest to understand how the app is used and improve it; TelemetryDeck processes them on my behalf. Requests about App Store purchases go to Apple, which holds them.

Children

Seren isn't directed at children under 13 and doesn't knowingly collect personal information from anyone, including children.

This website

This website doesn't use cookies, analytics or advertising trackers. It's hosted by Vercel, which keeps standard server logs to run and protect the service.

Changes to this policy

If this policy changes, the new version will be posted here with a new “last updated” date.

Contact

Questions or requests about privacy: hello@veglog.app