Privacy Policy

What we collect

When you use CheckMole, we may collect your email address (if you submit it through our assessment tool), anonymous usage analytics (pages visited, features used), and device type and browser information for performance optimization.

How we use your data

Email addresses are used to send you your skin assessment results and occasional educational content about skin health. We do not sell, rent, or share your personal data with third parties for marketing purposes.

Analytics

We use PostHog (EU-hosted) for anonymous product analytics to understand how people use CheckMole and improve the experience. Your answers in our tools and the result level they produce are sent to analytics to measure how the tools are used. They are never linked to your name or email address, and no photo is ever sent to analytics.

Data storage

Your data is stored securely using Supabase with encryption at rest. We retain email addresses until you request deletion.

Advertising

Article pages — including conditions, guides and comparison articles — may show ads served by Google AdSense. An article page can include both ads in the article and a quiz or checker block; the ads sit in the article, not inside the quiz. The questionnaire, result flow, standalone tools and checkout never contain ad units. Google and its partners may use cookies or similar identifiers to show and measure ads; in the EEA, the UK and Switzerland this happens only according to the choices you make in the consent message shown on those pages, which you can reopen at any time from the link in its footer. You can also manage ad personalisation at adssettings.google.com and read how Google uses data from sites that use its services. We never send your email address, your answers or your photos to advertisers.

The CheckMole app (photo checks)

In the paid app, the spots you add, your photos and your results are stored only in your own browser, on your device. We do not keep them on our servers, which also means we cannot restore them if you clear your browser data or switch devices. When you ask for a photo check, and only after you give explicit consent on that screen, the photo is sent once to Google's Gemini service for an automated description of what is visible, together with no name, email or other identifier. We process it in memory and do not store it. The description is combined with your answers by fixed rules to suggest a next step; it is not a diagnosis. Payments are handled by Stripe; we never see your card details.

Photos of your skin

Adding a photo is always optional and no tool on CheckMole requires one. If you add a photo on the step before payment, it is resized in your browser (which also removes location and camera metadata) and that copy is kept in this browser only (apart from the analysis described next, if you consent), so the app can start your first check from it after you pay. It is removed when your first check is saved, when you choose to continue without a photo, or when you start that step again. A copy older than 24 hours is never used and is deleted the next time you open that step or the app; clearing this site's data in your browser removes it at once. If you then ask the app for a photo check, the photo is handled as described under “The CheckMole app” above: sent once for an automated description, only after your explicit consent on that screen. Photos are not used for advertising and not shared with anyone else.

If you add a photo in the check on our site and give your consent, it is sent to our AI provider, Google's Gemini service, for analysis before you pay. The photo itself is not stored on our servers. Only the model's description of it is kept, for up to 30 days, so that we can show you the result after you buy. The copy of the photo kept on your device, as described above, stays in your browser only.

Photos added on the website before this version of the policy (September 2026) were uploaded, with consent, to a private storage bucket at Supabase that is not publicly accessible. They were not analysed by AI and are deleted automatically 30 days after upload. To have such a photo deleted sooner, email us at the address below.

Your email after a photo check

If you give your email address after a photo check on our site, we use it only to send you a link to your scan result and, if you have not bought a plan, one reminder about a day later. These emails are sent through our email provider, Resend, and never contain the result itself. We keep your address until you unsubscribe (every email has a link) or ask us to delete it, and we never share or sell it. When you unsubscribe, the address is erased and we keep only a scrambled (hashed) form of it, so that we never email it again.

Your rights

You can request access to, correction of, or deletion of your personal data at any time by contacting us. Under GDPR, you have the right to data portability and the right to withdraw consent.

Cookies

CheckMole uses essential cookies needed for the site to work. We also use PostHog (EU-hosted) for anonymous product analytics.

On article pages, Google AdSense and its partners may set advertising or measurement cookies or similar identifiers. In the EEA, the UK and Switzerland this happens only after you make a choice in the consent message; you can reopen that message from the link in its footer. You can also manage ad personalisation at adssettings.google.com and read how Google uses data from sites that use its services.

Session storage is not a cookie. We use it only as described under “Coming back from checkout”: to restore a checkout return state, and to remember that you closed the reminder bar on an article.

Coming back from checkout

When you press the pay button, we keep a small note in your browser's session storage so that, if you come back from the Stripe payment page without paying, your result and the offer are still on the page instead of an empty questionnaire. The note holds the page you were on, the tool and its result level, the plan you picked, which version of the page you were shown, and the time. It does not hold your answers, your email address, a photo or any identifier. It is kept on your device only, is ignored after 2 hours and is erased when you close the tab. This is functional storage needed for the payment step you asked for, so it does not depend on your cookie choice.

Session storage in the same tab also remembers that you closed the reminder bar on an article, so it does not come back while you read. It holds nothing else and is erased when you close the tab.

Contact

For privacy inquiries, email us at privacy@checkmole.com.