01 Information you provide
Signing in is optional — you can use Prometheus without an account by choosing “Skip for now.” If you do choose Sign in with Apple, we receive a stable Apple user identifier and the name and email address you agree to share. Apple lets you hide your real email and relay a private, anonymized address instead; that choice is yours.
We use this information only to save your followed topics and preferences to your account and to associate your subscription so it follows you across devices. We do not ask for a password — authentication is handled entirely by Apple.
02 Information collected automatically
- Notifications. If you enable notifications, we store your device's push token and time zone so we can deliver breaking news and the Daily Digest at the right local time.
- Preferences & followed topics. When you're signed in, your followed topics and app settings sync to your account so they're preserved across reinstalls and devices.
- Story reactions. When you like or dislike a story, that reaction may be sent to our server to inform aggregate story ranking. The like/dislike history used to personalize your “For You” feed is stored only on your device.
- On-device data. Your archived stories and personalization history live on your device and are not uploaded.
03 Subscriptions & payments
Prometheus Pro is sold through Apple's In-App Purchase. Payments are processed by Apple, and we use RevenueCat to manage subscription status and unlock premium features. We never see or store your payment card details — Apple handles all billing.
04 How we use your information
- To provide, maintain, and personalize your feed.
- To save and sync your preferences across your devices.
- To deliver the notifications you opt into.
- To operate subscriptions and premium access.
- To diagnose problems and improve the app.
We do not use your information for advertising and we do not sell it to anyone.
05 How your information is shared
We share data only with the service providers needed to run Prometheus:
- Apple — Sign in with Apple and App Store billing.
- RevenueCat — subscription management.
- Our hosting provider — runs the Prometheus backend that stores your account.
Story content is generated on our server and does not include your personal information. Market data is sourced from public feeds provided by Polymarket and Kalshi; Prometheus is an independent product and is not affiliated with, endorsed by, or operated by them. Any third party with access to your data is contractually required to protect it consistent with this policy and applicable law. We may also disclose information if required by law or to protect our rights and users.
06 Tracking & advertising
Prometheus does not track you across other apps or websites, does not use the App Tracking Transparency prompt, includes no advertising SDKs, and uses no third-party analytics for advertising.
07 Retention, deletion & your choices
You are always in control of your data:
- Delete your account. Open Profile → Account → Delete Account to permanently delete your account and all data saved to it. This erases your server record and revokes the Sign-in-with-Apple connection. This action cannot be undone.
- Clear on-device data. Clear your like/dislike history and archived stories anytime from Settings → Privacy, or remove all local data by deleting the app.
- Withdraw notification consent. Turn off notifications in the app or in iOS Settings at any time; we then stop sending pushes and remove your device token.
We retain account data for as long as your account exists and delete it promptly on your request. Data stored only on your device is never retained by us.
08 Security
We use industry-standard measures to protect your information, including encrypted transport (HTTPS) for all data in transit, and we store authentication credentials in the device Keychain. No method of transmission or storage is completely secure, but we work to protect your data and limit access to it.
09 Children
Prometheus is intended for adults and is not directed to children. We do not knowingly collect personal information from children under 17. If you believe a child has provided us with personal information, contact us and we will delete it.
10 International users
Prometheus is operated from the United States, and your information may be processed and stored there. By using the app you understand that your information will be handled as described in this policy.
11 Changes to this policy
We may update this policy from time to time. When we do, we'll revise the “Last updated” date above and, for material changes, provide a more prominent notice. Continued use of the app after an update means you accept the revised policy.
12 Contact us
Questions about your privacy, or requests to access or delete your data, can be sent to support@tryprometheus.app.
