Privacy

If you only read

Prometheus sets no advertising or analytics cookies and uses no third-party trackers. Our server keeps ordinary technical logs for a short time to run and secure the service. We count visits in aggregate: the day, the kind of page, and the site that referred you, without identifying you. Browsers that send a Global Privacy Control signal are not counted. Our host, Cloudflare, also provides cookie-free, aggregate page statistics. Settings such as appearance, language and map choices are saved in your browser on your own device.

If you create an account

Accounts are for people aged 13 or older. Your email address and a password hash are kept by our sign-in provider, Google Firebase Authentication. Our own database keeps your username, your profile text and photo if you add one, your saved stories and reading progress, and your community posts, comments, votes and follows. It also keeps your group memberships, private messages, reports and blocks, and the record of items you earn. We use this only to run the features you use.

While you are signed in, we also record what you do so that levels, streaks and the weekly games work: which stories you open and finish and when, the places you explore, your answers to the daily Oracle and the weekly puzzles, and the XP, Salt and items you earn.

Private messages are stored by Prometheus and are not end-to-end encrypted. Only the people in a conversation can read it in the app. A message that is reported is shared with the owner for review.

What other people can see

Your username, profile, level and XP, published posts and comments, follows and earned badges are public. Your place on the leaderboards is shown only if you choose to appear on them. Private messages, saved stories, your reading history and your own ballots are not public.

The iPhone app

The app shows the same website and adds a few features. The daily story reminder is scheduled on your phone itself. Prometheus does not run a notification server and does not receive a device token. Sharing uses the iPhone share sheet, and Prometheus does not see whom you share with. Read-aloud uses your device's own voices. If you have agreed in your iPhone settings to share analytics with app developers, Apple may share crash reports and usage statistics with us.

Who else processes data

Cloudflare hosts, stores and delivers Prometheus, and forwards email sent to our support address. Google Firebase handles sign-in and account emails. We do not sell personal information, and we do not share it for advertising.

Payments

Prometheus does not currently sell anything. If that changes, a payment processor will handle payments, we will not see or store card numbers, and this page will be updated first.

Your choices

You can edit your profile, delete your own posts, block members, turn off messages and leave the leaderboards. You can delete your account from Account security. Deleting it removes your profile, posts, messages, uploaded photos, activity and earned items; the public historical records are not affected. You can ask about your data at support@exploreprometheus.com.

Children

Accounts are not offered to anyone under 13. If we learn an account belongs to someone younger, we remove it.

Where data is processed

Prometheus runs on Cloudflare's network, and data may be processed in the United States.

Changes

We post changes on this page with a new date.