Terms of Service

1. Acceptance of Terms

By downloading, installing, or using Gradual ("the App"), you agree to be bound by these Terms of Service ("Terms"). These Terms supplement the Apple Licensed Application End User License Agreement, which governs your license to use the App. If you do not agree to these Terms, do not use the App.

2. Description of Service

Gradual is a personal health tracking application that aggregates health data from multiple sources including Apple HealthKit, Strava, and manually entered lab reports. The App calculates a composite Gradual Age and helps you track supplement protocols, biomarkers, and fitness metrics.

3. Not Medical Advice

The Gradual Age, biomarker analysis, and any other data presented are not substitutes for professional medical consultation. Always consult a qualified healthcare provider before making decisions about your health, medications, or supplement protocols.

4. User Accounts and Data

You are responsible for the accuracy of any data you input into the App, including lab results and supplement information. Your health data is stored locally on your device using encrypted storage (expo-secure-store) and synced to your personal iCloud account via Apple's CloudKit. You may export or delete your data at any time from the Profile screen.

5. Third-Party Services

The App integrates with the following third-party services. Your use of these integrations is subject to each service's own terms:

• Apple HealthKit — Health and fitness data is read with your explicit permission. This data is synced via your personal iCloud account and is not stored on Lawton Labs servers.
• Strava — Activity data is accessed via OAuth 2.0 with PKCE authentication. Only activity data you authorize is retrieved.
• OpenAI — When you import a lab report and choose AI parsing, your lab report PDF is sent to OpenAI's API for AI-powered biomarker extraction. See our Privacy Policy for details on how this data is handled.

6. Lab Report Processing

When you import a lab report, the App uses two methods to extract biomarker data:

• Local parsing — A regex-based parser runs entirely on your device with no external data transmission.
• AI-powered parsing — Your lab report PDF is sent to OpenAI's API for more accurate extraction. OpenAI processes this data according to its own API Terms of Use and Privacy Policy. The local parser is available as a fallback if AI parsing fails.

When importing a lab report PDF, you are presented with a consent dialog before any data is sent. If you do not wish to share lab data with OpenAI, you can use the "Paste Results" option instead, which parses entirely on-device.

7. Intellectual Property

The App, including its design, code, and content, is the property of Lawton Labs and is protected by applicable intellectual property laws. You are granted a limited, non-exclusive, non-transferable license to use the App for personal, non-commercial purposes.

8. Limitation of Liability

To the maximum extent permitted by applicable law, Lawton Labs shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of data, health outcomes, or any decisions made based on information provided by the App. The App is provided "as is" without warranties of any kind, either express or implied.

9. Data Accuracy

While the App strives for accuracy in parsing lab reports and calculating health metrics, we do not guarantee the accuracy, completeness, or reliability of any data processed by the App. AI-powered lab parsing may occasionally misinterpret values or miss biomarkers. Always verify parsed results against your original lab report.

10. Changes to Terms

We reserve the right to modify these Terms at any time. Continued use of the App after changes constitutes acceptance of the updated Terms. We will notify you of material changes through the App.

11. Termination

You may stop using the App at any time. You can delete all your data from the Profile screen. We reserve the right to terminate or suspend access to the App for violations of these Terms.

12. Contact

For questions about these Terms, please contact us at lawtonlabsapps@gmail.com.