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Privacy Policy

Effective date: June 17, 2026
This policy explains what STEM Maritime Systems LLC collects, how we use it, and your choices. In short: we collect the minimum needed to run your account, we never store your card details, and your vessel data is yours. We do not sell, rent, or share your information, and we never use it for marketing — see Section 5 for your opt-out rights.

1.Information We Collect

  • Account information — your email address, name, and a securely hashed password (we can never see your actual password).
  • Subscription information — your plan and status, plus identifiers from our payment processor (Stripe). See Section 3.
  • Content you provide — data you enter into the Service, such as logbooks, voyage plans, vessel particulars, and any documents you upload.
  • Basic technical data — limited information needed to operate and secure the Service (e.g., session and login activity).

2.What We Do NOT Collect

We do not collect or store your full payment-card details. All card data is entered on our payment processor's secure pages and is handled entirely by them — it never touches our servers.

3.Payment Processing

Payments are processed by Stripe. When you subscribe, Stripe collects and processes your payment information under its own privacy policy. We receive only a customer identifier and your subscription status so we can manage your access.

4.How We Use Your Information

  • To provide, maintain, and secure the Service and your account.
  • To process subscriptions and manage billing through Stripe.
  • To respond to support requests.
  • To send essential account and service notices.

We do not sell, rent, trade, or share your personal information with third parties for their own purposes. We do not use your account content or vessel data — logbooks, voyage plans, vessel particulars, uploaded documents — for advertising, marketing profiling, behavioral tracking, or to train any product or model. Your data is used only to operate the Service for you.

5.Marketing & Your Right to Opt Out

We will not use your information for marketing, and you do not have to do anything to prevent it — it is off by default. We do not run advertising, we do not build marketing profiles, and we do not share your information with advertisers or data brokers. Ever.

The only email we send is essential account and service messaging (e.g., receipts, security, and changes that affect your account). If we ever offer optional product updates or announcements, they will be opt-in, and every such message will include a one-click unsubscribe.

You may, at any time, opt out of any use of your information beyond operating your account, and request that we restrict, export, or delete your data — including any non-essential communications. Just email support@stemmaritimesystems.com and we will honor it.

6.How Your Data Is Protected

Passwords are stored only as salted, hashed values. Each account's data is isolated so that one user cannot access another user's information. We use reasonable technical and organizational measures to protect your data, though no system can be guaranteed 100% secure.

7.Data Retention & Your Data

We retain your account and content while your account is active. You own the data you enter and can request a copy or deletion. If you close your account, we delete or anonymize your personal data except where we must retain it to comply with law or resolve disputes.

8.Cookies

We use a single essential session cookie to keep you logged in securely. We do not use advertising or third-party tracking cookies.

9.Your Rights

Depending on where you live, you may have rights to access, correct, export, or delete your personal data, and to object to or opt out of certain processing. To exercise these, contact us at the address below — we do not require you to create any additional account or pay any fee to do so.

10.Children

The Service is intended for adults (18+) and is not directed to children. We do not knowingly collect data from children.

11.Changes to This Policy

We may update this policy from time to time. Material changes will be posted here with a new effective date.

12.Contact

Privacy questions? Email support@stemmaritimesystems.com.

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