Your protocol is yours.
PeptideMaxx is built private-by-default. Here's exactly what that means — in plain language, no dark patterns.
Last updated · July 2026
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The short version
Your health data stays on your iPhone. We have no servers, no accounts, and we never see your doses, protocols, notes, or weight.
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What stays on your device
Everything you enter — protocols, doses, injection sites, notes — plus your body weight if you connect Apple Health, is stored only on your device. We cannot access it. It is never uploaded, never used for advertising, and never shared with anyone.
- 03
Apple Health
With your permission, PeptideMaxx reads your body weight from Apple Health to display it alongside your dose history. This is read-only, stays on your device, and is never sent to us or any third party. You can revoke access anytime in iPhone Settings → Privacy & Security → Health.
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No accounts
PeptideMaxx has no sign-up or login. We do not collect your name, email address, contacts, or location.
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What leaves your device
A few service providers receive limited technical data so the app can function, and are contractually required to protect it to the same standard described here:
- RevenueCat processes subscription purchases and status (purchase history tied to a random anonymous ID). Privacy policy
- PostHog receives anonymous usage analytics — which screens and features are used. Events never include health data, dose values, compound names, or notes. Privacy policy
- Sentry receives crash reports (device model, OS version, stack traces) so we can fix bugs. Crash reports never include your health data. Privacy policy
- Meta (Facebook) — only if you tap "Allow" on the App Tracking Transparency prompt — receives your device's advertising identifier and purchase events so we can measure whether our ads work. If you decline, this never happens and the app works exactly the same. You can change your choice anytime in iPhone Settings → Privacy & Security → Tracking.
We never sell or rent your data, share your health information with anyone, or show third-party ads.
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Deletion & retention
Your data lives on your device: delete it anytime via Settings → Delete All Data in the app, or by deleting the app itself. Analytics and crash data are retained by the providers above per their policies; email us to request deletion of anything associated with your device.
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Children
PeptideMaxx is intended for adults and is not directed at children under 13.
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Changes
We'll update this page and the date above if our practices change.
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Contact
Questions about privacy? Email team@peptidemaxx.app.