Last updated: September 12, 2026
Lumen Altar is built to be quiet, private, and yours. This page explains exactly what we keep, what we never keep, and how to reach us.
The only account detail we collect is your email address, used solely to send a one-time sign-in link and to identify your membership. We never ask for a password, and we do not collect your name, phone number, or social profiles.
Your email is stored by our authentication provider and is never sold or shared with third parties for advertising.
Adept membership is optional. On Android, subscriptions are processed entirely through Google Play and managed by RevenueCat. The app never sees or stores your payment card — the stores handle billing, receipts, and refunds.
On the web, payments are processed by Stripe. We receive only a confirmation of your purchase, never your card details.
Current tiers: $2.99 monthly, $29.99 yearly, and $59.99 lifetime. You can cancel at any time from the store where you purchased.
Lumen Altar may request your device location for one purpose only: calculating the current planetary hour and aligning the compass. This calculation is ephemeral — the coordinates are used in memory and discarded. They are never stored, never transmitted to us, and never sold.
If you decline location access, the app continues to work using a default reference point. Location is never required.
Every sigil you shape and every mark you keep is stored on the device that made it — in the browser or in the installed app — so your record works offline and stays yours.
If you are on the free tier, nothing leaves your device. If you hold an Adept membership and are signed in, a copy of each mark — its sealed image and its details, such as the intention, note and celestial stamp — is also kept in your account so your Grimoire appears on your other signed-in devices. Deletions travel the same way.
That copy is tied to your account and readable only by you. It is never sold, never shared, and never used for advertising. Uninstalling the app removes the marks held on that device.
To request account deletion, change your email, or ask any privacy question, write to support@lumenaltar.com. We will confirm deletion within 30 days and remove your email and membership record.
Deleting your account also removes any synced copies of your marks held in that account. Marks already stored on a device stay there until you remove them or uninstall the app.