Privacy

It runs on your device

Satura works entirely in your browser. Color identification, simulation and the color-vision test are on-device computations. Your camera feed is processed locally and is never uploaded or sent anywhere.

What we store

Your settings, saved colors and test results are kept on your own device (in the browser's storage), not on a server. Using the free core needs no account. The only time we store anything in the cloud is the optional Pro unlock, described below.

If you buy Pro (optional account)

The free core never needs an account. Pro is an optional one-time unlock. If you choose to buy or restore it, you sign in with your email (we send a 6-digit code - no password to create or remember). We then store a small record in Google Firestore: your account ID, your email, and a flag marking whether Pro is unlocked. Your photos and test results are never sent to us. You can ask us to delete your account record at any time (see Contact).

Optional cloud sync (Pro)

Pro includes an optional cloud sync for your saved-colour library. It is off by default - nothing leaves your device until you turn it on in Settings. When you do, your saved-colour library (the colour values, and the names and notes you gave them) is stored in your own private space in Google Firestore so it can mirror across the devices you sign in on. Your library always stays on each device too; the cloud copy is just a mirror. We only use it to sync your library back to you - never for anything else.

You can turn sync off at any time, and choose to delete the cloud copy when you do. When you delete a saved colour, the deletion syncs to your other devices and the record is fully removed from the cloud within about 90 days (we keep a brief tombstone in the meantime so the deletion can reach a device that has been offline, rather than the colour reappearing). Photos and test results are never synced.

Payments

Pro payments are handled by Stripe. We never see or store your card details - Stripe processes them as an independent data controller under its own privacy policy. We keep only Stripe's confirmation that your purchase succeeded, linked to your account.

Analytics

We use Cloudflare Web Analytics to understand overall usage (such as page views). It is cookie-free, does not track you across other sites, and does not collect personally identifying information.

Where we operate

Satura is operated by Fluxt Ltd from the United Kingdom, and we process the limited data described above under UK data-protection law (UK GDPR). If you buy Pro, the small account record is stored on Google Cloud (Firestore) and your payment is handled by Stripe - both may process data outside your country. Wherever you use Satura, the free core stays on your device.

Contact

Questions about privacy? Email info@satura.app.