Privacy Policy

Last updated: September 28, 2026

On-Device Data Storage

Every caffeine entry, drink default, schedule, goal, and log you create while using Relix is stored exclusively on your device. We do not collect, transmit, receive, or store any of it on our servers — Relix has no server for it and no way to reach it. The details you enter during the initial onboarding flow are handled separately, and are described in the next section.

What We Do Collect

Relix uses Superwall (Superwall Ventures, Inc.) as a third-party service provider to run the initial onboarding flow and to manage subscriptions and purchases. Through Superwall we receive: technical and device information (device model, operating system version, app version, language, general region, time zone, and an anonymous app-install identifier assigned by your device); the answers you enter during onboarding, including the body metrics used to personalize your estimate — age, weight, and sex — along with your caffeine goal and your target bedtime; interaction and flow analytics, such as which onboarding and paywall screens you were shown, the options you selected, and where you left off; and your subscription and purchase status.

Your onboarding answers are stored by Superwall as attributes on an anonymous profile and are used for personalization, audience segmentation, and paywall optimization. Because Relix has no accounts, none of this is tied to your name or email address, and it does not include the caffeine entries, drink defaults, schedules, or logs you create afterward while using the app — those stay on your device. Under data-protection law, including the GDPR, Relix is the data controller for this information and Superwall acts as our data processor. We use it to set up your personalized estimate, to see where onboarding is confusing, to present and price subscriptions, and to keep purchases working. Superwall's privacy policy is at superwall.com/legal/privacy-policy.

No Data Sharing or Sale

We do not sell, rent, or trade your information to anyone, and we do not share it with advertisers or data brokers. The caffeine entries, drinks, schedules, and logs you create in the app never leave your device, so there is nothing there to share. The onboarding answers, analytics, and purchase information described above are shared only with Superwall, acting as our data processor for onboarding and subscription management, and are never used for advertising.

Subscriptions & Payment Processing

Relix is a paid app. When you subscribe or purchase lifetime access, your payment is processed entirely by the Apple App Store — Relix never receives or stores your payment card details. Superwall verifies and maintains your subscription status so your purchase keeps working across devices and reinstalls.

Advertising & Cross-App Tracking

Relix contains no advertising SDKs and no ad-tracking frameworks. We do not access your device's advertising identifier (IDFA), we do not show an App Tracking Transparency prompt, and we do not track you across other apps or websites. Superwall is the only third-party service integrated into the app.

User Responsibility

You are solely responsible for the security of your device and for backing up your data. Because your caffeine history lives only on your device, deleting the app or losing your phone will permanently erase it — the developer cannot recover it for you.

No Medical Advice

Relix provides informational estimates for educational purposes only and is not intended to diagnose, treat, cure, or prevent any medical condition.

Children's Privacy

Relix is not directed to children and we do not knowingly collect information from anyone under 18. Caffeine tracking is intended for adults.

Changes to This Policy

If this policy changes, the updated version will be posted here with a new date. Continued use of the app after changes constitutes acceptance of the revised policy.

Questions? support@relixhealth.com