Terms of Service, Privacy Policy, and Cookie Policy for Quartermates
Last updated: April 12, 2026
Quartermates is a web-based crew management platform for sailing clubs and racing crews. The service enables skippers to manage their boat, schedule races, invite crew, and track crew availability. Crew members can confirm availability and view race details without a paid account.
Quartermates is operated by Tilman Dingler, The Hague, Netherlands ("Owner", "we", "us"). The service is currently in beta. Features may change without notice.
These Terms govern your use of Quartermates and form a legally binding agreement between you and the Owner. By accessing or using the service, you confirm that you have read, understood, and agree to be bound by these Terms.
To use the full functionality of Quartermates, you must create an account by providing truthful, accurate, and complete information. Partial use of the service may be possible without an account. You are responsible for:
You must be at least 16 years old to create an account. By registering, you confirm that you meet this age requirement.
You may terminate your account at any time by contacting us at tilman@quartermates.com.
The Owner reserves the right to suspend or terminate your account at any time, at its sole discretion, without notice and without liability, for any reason including but not limited to a breach of these Terms, fraudulent activity, or conduct harmful to other users or to the service.
The Owner may also deny access to the service to any user and report conduct to relevant authorities where there are reasonable grounds to believe a violation of law or these Terms has occurred.
You agree not to use Quartermates to:
Unless otherwise indicated, all content, design, code, trademarks, trade names, service marks, illustrations, images, and logos on Quartermates are the intellectual property of the Owner or its licensors and are protected by applicable intellectual property laws and international treaties. You may not reproduce, distribute, modify, or create derivative works without prior written permission, except for personal, non-commercial use with appropriate attribution.
Content you enter into the platform — including boat names, race details, crew notes, and any other information — remains your property. By submitting content, you confirm that you have the legal right to do so, and you grant the Owner a non-exclusive, royalty-free licence to store and display it solely for the purpose of providing the service to you and your crew.
You are solely responsible for any content you upload or transmit. The Owner does not pre-screen or moderate user content, but reserves the right to remove content that violates these Terms, infringes third-party rights, creates a risk to the service, or is required to be removed by a competent authority.
The service may provide access to or integrate with third-party resources or services. The Owner has no control over third-party content or availability and accepts no responsibility for any loss or damage that may arise from your use of such resources.
Quartermates is provided "as is" and "as available". The service is currently a beta product and may contain bugs, experience downtime, or be subject to breaking changes. We do not warrant that:
To the maximum extent permitted by applicable law, we disclaim all implied warranties, including merchantability, fitness for a particular purpose, and non-infringement.
To the fullest extent permitted by applicable law, the Owner shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of Quartermates, including but not limited to loss of data, lost profits, or business interruption — unless caused by intent or gross negligence, or relating to life, health, or physical integrity.
Where liability cannot be excluded by law, it is limited to typical and foreseeable damages at the time the agreement was entered into. The Owner's total aggregate liability shall not exceed €50 (fifty euros) or the total amount you have paid to us in the twelve months preceding the claim, whichever is greater.
You agree to defend, indemnify, and hold the Owner harmless from and against any claims, damages, obligations, losses, liabilities, costs, and expenses (including legal fees) arising from:
The Owner reserves the right to interrupt the service for maintenance, system updates, or other changes, and will inform users where reasonably possible. The service may also be unavailable due to events outside the Owner's reasonable control, such as force majeure events (infrastructure failures, blackouts, etc.).
If the service is discontinued entirely, the Owner will cooperate with users to enable withdrawal of personal data and will respect applicable users' rights.
The Owner's failure to assert any right or provision under these Terms shall not constitute a waiver of such right or provision. No waiver shall be considered a further or continuing waiver of such or any other term.
Should any provision of these Terms be deemed invalid or unenforceable under applicable law, the parties shall seek in good faith an amicable agreement on valid substituting provisions. The invalidity of one provision shall not affect the validity of the remaining provisions, which shall remain in full force and effect, unless the severed provision is essential to the agreement as a whole.
The Owner reserves the right to transfer, assign, dispose of by novation, or subcontract any or all rights or obligations under these Terms, taking the user's legitimate interests into account. You may not assign or transfer your rights or obligations under these Terms without the Owner's written permission.
These Terms are governed by the law of the Netherlands (Nederlands recht), without regard to conflict of laws principles. Disputes arising from or related to these Terms or your use of the service shall be submitted to the exclusive jurisdiction of the competent court in The Hague (Den Haag).
If your country of residence provides for higher applicable consumer protection standards under local law, those higher standards shall prevail.
The Owner reserves the right to amend these Terms at any time. Where legally required, users will be notified in advance of when changes take effect. Continued use of the service after changes take effect constitutes acceptance of the revised Terms. If you do not wish to be bound by changes, you must stop using the service. Previous versions of these Terms are available from the Owner upon request.
For questions about these Terms, or to exercise any rights under them, contact: tilman@quartermates.com
The controller responsible for processing your personal data is:
We collect only the data necessary to provide the service. This falls into two formal categories:
Personal Data provided by users
Usage Data (collected automatically)
If you enter personal data of third parties (e.g., crew members you invite) through the platform, you confirm that you have a lawful basis to do so and that those individuals have been informed where required.
We do not collect payment information. The service is currently free.
Your data is processed for the following purposes:
The Owner processes your data using computer and IT tools, with strict security measures and organisational procedures designed to prevent unauthorised access. Processing is carried out at the Owner's operating locations and at the premises of any sub-processors listed in section 5. This may involve cross-border transfers of data outside the European Economic Area.
Data is retained for as long as necessary for the purposes for which it was collected:
If you request deletion of your account, we will delete your personal data within 30 days of receiving the request, except where we are required to retain it by law. To request account deletion, email tilman@quartermates.com.
We use the following sub-processors to provide the service:
Supabase, Inc. (Singapore)
Database, authentication, and realtime infrastructure. Processes Usage Data and Trackers. International transfers are covered by Standard Contractual Clauses (SCCs) under Article 46 GDPR.
Vercel Inc. (USA)
Application hosting and edge delivery. Processes Usage Data as a data processor. International transfers are covered by Standard Contractual Clauses (SCCs) under Article 46 GDPR.
Google Ireland Ltd. (Ireland) — Google Analytics 4
Website analytics, active only after you grant consent via our banner. Google processes analytics data (pages visited, approximate location, device characteristics) as a data processor. Data may be transferred to Google LLC (USA) under the EU–US Data Privacy Framework and Standard Contractual Clauses (Art. 46 GDPR). You can withdraw consent at any time by clearing this site's browser storage; see also Google's privacy policy and the GA opt-out browser add-on.
Functional Software, Inc. dba Sentry (USA)
Error tracking. If the application encounters a technical error, technical details (browser, page, error message) are sent to Sentry so we can diagnose and fix it. Reports are configured not to include personal data. International transfers are covered by Standard Contractual Clauses (Art. 46 GDPR); see Sentry's privacy policy.
We do not sell your data to any third party. We do not use your data for advertising.
Under the AVG (Algemene Verordening Gegevensbescherming / GDPR), you have the right to:
Requests to exercise any of these rights are free of charge and will be responded to within one month. Any rectification, erasure, or restriction will be communicated to recipients of your data, unless this proves impossible or disproportionate.
To exercise any right, contact us at tilman@quartermates.com. You also have the right to lodge a complaint with the Dutch data protection authority: Autoriteit Persoonsgegevens — autoriteitpersoonsgegevens.nl.
Your personal data may be used for legal purposes by the Owner in court or in stages leading to possible legal action arising from improper use of the service. You acknowledge that the Owner may be required to disclose personal data upon request of public authorities.
We implement appropriate technical and organisational measures to protect your data, including encrypted connections (HTTPS), row-level security policies in our database, and regular review of access controls. System logs and maintenance tools may collect files recording interactions with the application (including IP addresses) for operational purposes. No system is completely secure, and we cannot guarantee absolute security.
For information about how we use cookies and tracking technologies, see the section below.
We may update this Privacy Policy at any time by notifying users on this page and, where technically and legally feasible, by email. We recommend checking this page regularly, referring to the date of last modification above. Where changes affect processing based on your consent, we will collect new consent where required.