SeaMark Privacy Policy
Last updated: September 26, 2026
SeaMark (“we,” “us,” or “our”) operates the SeaMark mobile application and the website at seamarkfishing.com (together, the “Service”). This Privacy Policy explains what information we collect, how we use it, and the choices you have. By using the Service, you agree to the practices described here.
1. Information We Collect
Account information. When you create a SeaMark account, we collect your email address and a password (stored as a one-way hash). You may also choose a display name that is visible to other users in the app. We do not require your real name, phone number, or physical address.
Location information. SeaMark is a marine navigation and fishing tool. To show your position on the map, provide fishing-relevant data near you, and support optional location-sharing features, the app uses your device’s GPS. On Apple devices this works through Apple’s standard location services. Background location is used only when you have turned on a SeaMark feature that needs it (such as sharing your position with a group); it is never used to track you silently, and you can turn it off at any time in your device’s settings. We do not sell location data to anyone.
Map and marine data requests. When you load a marine data layer (sea-surface temperature, chlorophyll, salinity, wind, currents, bathymetry, nautical charts, buoy observations, or forecasts), the app requests that data from public government sources such as NOAA and NASA, and from our own servers that cache and reprocess that data. These requests may include the geographic area you are viewing and general device information (such as app version and platform) needed to deliver the correct data.
Community content. If you post in the SeaMark community forum, your display name, the content of your posts, and any images you upload are stored and shown to other users. Reactions and read markers are also stored so the forum can display them.
Usage and diagnostics. We collect basic, anonymized usage information such as app version, device type, and crash reports so we can fix problems and improve the Service. This information is not linked to your identity.
Payment information. Subscriptions purchased inside the Apple app are processed by Apple using your Apple ID; Apple handles the payment and we do not see or store your card details. Website merchandise purchases, if offered, are processed by Stripe, which handles payment card data directly; we receive only confirmation that a transaction completed.
2. How We Use Information
We use the information we collect to:
- Create and maintain your account and keep you signed in across sessions.
- Show your location on the map and deliver marine data for the area you are viewing.
- Enable optional features you choose to use, such as waypoints, location sharing, and the community forum.
- Process subscriptions and verify access to paid features. Beta testers approved by us receive access without payment.
- Fix bugs, analyze performance, and improve the Service.
- Send service-related emails such as password-reset links. We do not send marketing email unless you ask for it.
3. How We Share Information
We do not sell your personal information. We share information only as described here:
- With other users, when you choose. If you share your location or post in the community, that information is visible to other users according to the sharing or posting settings you selected.
- With service providers. We use trusted third-party services to operate the app, including Supabase (databases and authentication), Apple (in-app purchases), Stripe (website payments), and government data providers (NOAA, NASA). These providers process data on our behalf under their own privacy obligations.
- For legal reasons. We may disclose information when required by law, court order, or to protect the rights, property, or safety of SeaMark, our users, or others.
4. Data Retention
We keep your account and activity data for as long as your account is active. When you delete your account, we remove your personal data from our systems within a reasonable period, except for limited data we must retain for legitimate business or legal reasons. Forum posts and shared location data associated with your account are also removed when you delete your account. Cached marine data tiles are retained only to improve performance and are not linked to your identity.
5. Your Choices
- Location. You can deny or revoke location access in your device’s settings at any time. SeaMark will continue to work for browsing data, but location-specific features will be limited.
- Account. You can change your display name or password in the app, and you can request that we delete your account by contacting us at the email below.
- Notifications. You can manage push and email notifications in your device settings and in the app.
- Marketing. You can opt out of any marketing email by following the unsubscribe link in those emails.
6. Children’s Privacy
SeaMark is not directed at children under 13, and we do not knowingly collect personal information from children. If you believe a child has provided us with personal information, contact us and we will delete it.
7. International Users
SeaMark is available to users in the United States and other countries. If you access the Service from outside the United States, your information may be transferred to and processed in the United States, and by using the Service you consent to that transfer.
8. Security
We use reasonable technical and organizational measures to protect your information, including encrypted password hashing, secure connections (HTTPS/TLS), and row-level access controls on our database. No method of transmission or storage is completely secure, so we cannot guarantee absolute security, but we work to protect your information against unauthorized access.
9. Changes to This Policy
We may update this Privacy Policy from time to time. If we make material changes, we will notify you through the app or by email and update the “Last updated” date above. Continued use of the Service after a change means you accept the updated policy.
10. Contact Us
If you have questions about this Privacy Policy or your personal information, contact us at: