Effective date: May 2, 2026
Peptilog ("we," "our," or "the app") is a peptide research tracking tool for iOS and Android. We are committed to protecting your privacy. This policy explains what data is collected, how it is used, and the choices you have.
We collect only the minimum data necessary to operate the app:
Peptilog does not require you to create an account. All health tracking data — injection logs, vials, cycles, bloodwork, and body weight — is stored exclusively on your device using AsyncStorage.
We do not have access to, and cannot recover, any locally stored data.
Peptilog offers optional paid subscriptions (Monthly, Annual, and Lifetime) processed through the Apple App Store or Google Play Store. Subscription management is handled by RevenueCat, a third-party subscription infrastructure provider.
RevenueCat receives:
Payment card details are processed entirely by Apple or Google — Peptilog and RevenueCat never see your payment card information.
RevenueCat's privacy policy: revenuecat.com/privacy
The in-app AI Research Assistant allows you to ask questions about peptides and research. Messages you send are forwarded to a large language model API for processing and a response is returned. Messages are not stored on our servers and are not used to train AI models.
Peptilog can send you push notifications to remind you of scheduled injections. To enable this, the app requests permission to send notifications and registers a device push token with Expo's notification service.
You can disable notifications at any time in your device's Settings app. Peptilog does not use push notifications for marketing.
We use the following third-party services:
We do not use advertising SDKs, analytics trackers, or social media SDKs of any kind.
Peptilog is intended for adults (18+) engaged in research activities. We do not knowingly collect information from children under the age of 13. If you believe a child has provided us with information, please contact us immediately and we will delete it.
Because almost all data is stored locally on your device, you have full control over it:
If you are in the European Economic Area (EEA) or California, you may have additional rights under GDPR or CCPA. Contact us to exercise them.
We may update this policy from time to time. When we do, we will update the effective date at the top of this page. We encourage you to review this page periodically. Continued use of Peptilog after changes constitutes acceptance of the updated policy.
If you have any questions about this Privacy Policy or your data, please contact us: