Effective Date: September 26, 2025

Marinecharts values and respects your privacy. We have prepared this privacy policy to explain the manner in which we collect, use and disclose personal information through your use of the Marinecharts service.

Table of Contents

1. Who Are 'We'?
2. Information Collection and Use
3. s a visitor to the marinecharts.io website
4. As a customer and subscriber of Marinecharts
5. Changes and questions

Who Are 'We'?

Marinecharts is a product developed and operated by Durandal Ltd. When we refer to 'we' (or 'our' or 'us'), that means Durandal Limited, registered in the UK as company number 07891415. Our headquarters are in the UK.

For European Union data protection purposes, Durandal Limited acts as a controller in relation to your personal data. In respect to any data transferred to third party service providers, the businesses providing the services act as data processors. The full list of third party services used is listed below.

Information Collection and Use

Basic Information

TL;DR: For marinecharts.io visitors, we do not use cookies and we do not collect any personal data. If you decide to create an account, we ask for the bare minimum and only share it with services that are absolutely necessary for the app to function.

At Marinecharts, we are committed to complying with GDPR, CCPA, PECR and other privacy regulations on our website and service. The privacy of your data — and it is your data, not ours! — is a big deal to us.

In this policy, we lay out what data we collect and why, how your data is handled and your rights to your data. We promise we never sell your data: never have, never will.

As a visitor to the marinecharts.io website

The privacy of our website visitors is important to us so we do not track any individual people. As a visitor to the marinecharts.io website:

• No personal information is collected
• No information such as cookies is stored in the browser
• No information is shared with, sent to or sold to third-parties
• No information is shared with advertising companies
• No information is mined and harvested for personal and behavioral trends
• No information is monetized

We run the Plausible Analytics script to collect some anonymous usage data for statistical purposes. The goal is to track overall trends in our website traffic, it is not to track individual visitors. All the data is in aggregate only. No personal data is collected.

Data collected includes referral sources, top pages, visit duration, information from the devices (device type, operating system, country and browser) used during the visit and more. You can see full details in the Plausible Analytics data policy.

As a customer and subscriber of Marinecharts

Our guiding principle is to collect only what we need and that we will solely process this information to provide you with the service you signed up for.

We use a select number of trusted external service providers for certain service offerings. These service providers are carefully selected and meet high data protection, data privacy and security standards.

We only share information with them that is required for the services offered and we contractually bind them to keep any information we share with them as confidential and to process personal data only according to our instructions.

Here’s what that means in practice:

What we collect and what we use it for

• An email address is required to create an account. You need to provide us with your email address if you want to create a Marinecharts account. That’s just so you can log in and personalize your new account, and we can send you invoices, updates or other essential information.

• A persistent first-party cookie is stored to remember you’re logged in. If you log in to your Marinecharts account, you give us permission to use cookies so you don’t have to log in on each returning session. This makes it easier for you to use our product. A cookie is a piece of text stored by your browser. You can adjust cookie retention settings in your own browser. Cookies that are already stored may be deleted at any time.

• The payment process is handled by a third-party payment provider. If you choose to subscribe to a Marinecharts paid plan, the billing information and the payment process is handled by Paddle. See the Paddle Privacy Policy for full details.

• All emails are sent using a third-party email provider. Transactional emails and email reports (should you choose to subscribe to them) are sent using Postmark. We have disabled both open tracking and link tracking on all emails sent. See the Postmark Privacy Policy for full details.

• When you write to us with a question or to ask for help. We keep that correspondence, which includes the email address, so that we have a history of past correspondences to reference if you reach out in the future. We use this data solely in connection with answering the queries we receive.

Retention of data

We will retain your information as long as your account is active, as necessary to provide you with the services or as otherwise set forth in this policy.

We will also retain and use this information as necessary for the purposes set out in this policy and to the extent necessary to comply with our legal obligations, resolve disputes, enforce our agreements and protect Durandal’s legal rights.

You can choose to delete your Marinecharts account at any time. All your data will be permanently deleted immediately when you delete your account.

Changes and questions

We may update this policy as needed to comply with relevant regulations and reflect any new practices. Whenever we make a significant change to our policies, we will also announce them on our company blog or social media profiles.

Contact us at [email protected] if you have any questions, comments, or concerns about this privacy policy, your data, or your rights with respect to your information.