Sereniton (styled SERENITŌN in the app; the macron marks the long "o", as in tone) is published by Brownberg LLC. The plain spelling "Sereniton" is the product's legal and store name; the styled form is the same product.
Last updated: August 22, 2026
Sereniton has no accounts, no login, no analytics, and no servers of its own. It does not collect your name, email, location, contacts, photos or anything else that identifies you. There is nothing to upload: the app has no way for you to submit content, and we operate no cloud storage of any kind. No storage buckets, no databases, no backend.
Your progress lives in one small settings file on your own device and never leaves it.
The only off-device processing involved in Sereniton is by the advertising provider (free version only) and by Google Play when you purchase or manage a subscription. Both are described plainly below.
One local settings file:
This file stays on your device. It is not transmitted, not backed up to our servers (we have none), and it is deleted when you uninstall.
The free version shows a small banner on the menu and short ads between levels, never during play. Ads are served by Google AdMob, a third party. To serve and measure ads, the ad SDK receives:
Under store rules, data an SDK inside the app transmits counts as collected by the app, so the store Data Safety form declares it even though Sereniton itself never sees, stores or combines this data. The network's own policy governs it: see Google's partner sites policy. You can reset or delete your advertising ID at any time in Android Settings → Privacy → Ads.
If you subscribe to remove ads, the ad SDK is not initialised and the requests above stop entirely. The subscription itself is processed by Google Play (or the Apple App Store on iOS), which are third parties: Google or Apple, and your card network or bank, handle your payment details under their own policies. Brownberg LLC never receives your card number, billing address or payment credentials. The app only learns whether the subscription is active and when it renews.
The subscription auto-renews. We think auto-renewal should never be a surprise, so when you open Sereniton inside the last 10 days, 5 days or 1 day before a renewal, it shows you a reminder, once per window, with a manage and cancel button right on it. (Reminders appear in the app, so they can only appear when you open it; Google Play also sends its own renewal emails.)
Cancelling is one tap from the menu ("manage or cancel subscription"), which opens your Google Play subscription page, where cancellation takes effect for the next period. You keep what you paid for until the period ends. You can also cancel any time at Google Play subscriptions.
Sereniton's artwork and music are procedurally generated by software, and AI tools were used to assist in building the game. No AI system runs inside the app, none of your data is sent to any AI service, and the app collects nothing that could be.
Sereniton is suitable for all ages and is not directed at children as its primary audience. Ads served to users flagged as children by the platform are configured as non-personalised.
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Brownberg LLC: admin@brownbergllc.com
If this policy changes, the date at the top changes with it, and the new version replaces this one at the same address.