Terms of Use
Effective date: July 8, 2026
1. Agreement to these Terms
These Terms of Use ("Terms") are an agreement between you and the developer of DermProof ("DermProof", "the Developer", "we"). They govern your use of the DermProof iOS application (the "App") and the DermProof Pro subscription. By downloading or using the App, you agree to these Terms. If you do not agree, do not use the App.
2. What DermProof is, and what it is not
DermProof is a personal skin tracking tool. It photographs your skin on your device, measures changes against your own baseline over time, and reports whether the changes it measures are consistent with the marketing claims of products you choose to track.
DermProof is not a medical device and does not provide medical advice. Scores, trends, and claim verdicts are cosmetic measurements produced by on-device image analysis. They are not a diagnosis, treatment, or substitute for the judgment of a qualified healthcare professional. If you have a skin condition or a concern about your skin, consult a dermatologist or physician. Never delay seeking medical advice because of something the App reported.
3. License
The App is licensed to you, not sold. We grant you a personal, non-exclusive, non-transferable, revocable license to use the App on Apple devices that you own or control, for personal, non-commercial use, as permitted by the App Store Terms of Service.
Apple's standard Licensed Application End User License Agreement applies as the minimum baseline of your license and is incorporated by reference: apple.com/legal/internet-services/itunes/dev/stdeula. Apple is not a party to these Terms and is not responsible for the App, but Apple and its subsidiaries are third party beneficiaries of these Terms and may enforce them against you.
4. DermProof Pro subscription
- DermProof Pro is an optional auto-renewing subscription: $69.99 USD per year, which includes a 14 day free trial for new subscribers, or $9.99 USD per month. Prices in other regions are set by Apple and shown in the App before purchase.
- Payment is charged to your Apple ID account at confirmation of purchase. For the annual plan with a free trial, the charge occurs at the end of the trial unless you cancel at least 24 hours before the trial ends.
- Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your Apple ID account is charged for renewal within 24 hours before the end of the current period.
- You can manage and cancel subscriptions in your Apple ID settings (Settings, your name, Subscriptions). Deleting the App does not cancel a subscription.
- Any unused portion of a free trial is forfeited when you purchase a subscription.
- Refunds are handled by Apple under the App Store terms. We cannot issue App Store refunds directly.
- Free features of the App remain usable without a subscription. We may change which features require Pro over time; changes will not remove access to data you have already recorded.
5. Your photos and your data
Your photos and skin analysis results are stored on your device and are not uploaded to us. How data is handled is described in the Privacy Policy, which forms part of these Terms. You are responsible for maintaining your device backups; if you delete the App, its on-device data is deleted with it.
6. Anonymous data contribution
The App offers an optional setting to contribute anonymous product claim results to an aggregate dataset. This is described in the Privacy Policy. Contribution is not required to use the App, and you can revoke it and request deletion of contributed records at any time from within the App.
7. Acceptable use
You agree not to reverse engineer, resell, or misuse the App; not to use it in violation of applicable law; and not to attempt to interfere with its services, including the anonymous aggregate dataset. You may not use output of the App to make medical claims about products or to present DermProof measurements as clinical evidence.
8. Third party services and trademarks
Weather and location context are provided through Open-Meteo and BigDataCloud as described in the Privacy Policy. Subscription management uses Apple and RevenueCat. Third party brand and product names shown in the App or on this site are the property of their respective owners. DermProof is not affiliated with, endorsed by, or sponsored by any product brand it tracks, and tracking a product in the App implies nothing about the brand's cooperation or endorsement.
9. Measurement disclaimer
DermProof measurements depend on capture conditions such as lighting, distance, and camera angle. The App applies quality controls and statistical noise floors, but no image-based measurement is perfect. Claim verdicts describe what was measured on your skin during your tracking period. They are not a general statement about a product's effectiveness for other people, and they do not establish that a product is defective or falsely advertised.
10. Warranty disclaimer
The App is provided "as is" and "as available", without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the App will be uninterrupted, error free, or that measurements will meet your expectations.
11. Limitation of liability
To the maximum extent permitted by law, the Developer will not be liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, arising from your use of the App. Our total liability for all claims relating to the App is limited to the amount you paid for the App and subscriptions in the 12 months before the claim arose. Some jurisdictions do not allow certain limitations, so parts of this section may not apply to you.
12. Termination
You may stop using the App at any time. We may suspend or terminate the license if you materially breach these Terms. Sections 9 through 11 survive termination.
13. Changes to these Terms
We may update these Terms from time to time. The effective date above reflects the latest version. Material changes will be communicated in the App or on this page. Continued use after changes take effect constitutes acceptance.
14. Governing law
These Terms are governed by the laws of the Province of Ontario and the federal laws of Canada applicable in Ontario, without regard to conflict of law rules. Courts located in Ontario have exclusive jurisdiction over disputes arising from these Terms, except where the law of your place of residence grants you mandatory consumer protections.
15. Contact
Questions about these Terms: [SUPPORT EMAIL, to be added before publication].