Legal & Privacy
Terms of Service, Privacy Policy, and Cookie Policy for Quartermates
Last updated: April 12, 2026
Terms of Service
1. Service Description
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.
2. Account Registration
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:
- Keeping your login credentials confidential and choosing a strong password
- All activity that occurs under your account
- Ensuring the information you provide is accurate and up-to-date
- Notifying us immediately of any unauthorised use of your account
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.
3. Account Suspension and Termination
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.
4. Acceptable Use
You agree not to use Quartermates to:
- Violate any applicable laws or regulations
- Harass, abuse, or harm other users
- Transmit spam, unsolicited messages, or malware
- Attempt to gain unauthorised access to the system or other users' data
- Scrape, crawl, or systematically extract data from the platform
- Impersonate another person or entity
- Reproduce, duplicate, copy, sell, resell, or exploit any portion of the service without express prior written permission
5. Content on the Platform
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.
6. Content Provided by Users
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.
7. External Resources and Third-Party Links
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.
8. Disclaimer of Warranties
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:
- The service will be uninterrupted, error-free, or secure
- Data stored will never be lost or corrupted
- The service will meet your specific requirements
To the maximum extent permitted by applicable law, we disclaim all implied warranties, including merchantability, fitness for a particular purpose, and non-infringement.
9. Limitation of Liability
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.
10. Indemnification
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:
- Your use of and access to the service, including any data or content you transmit
- Your violation of these Terms
- Your violation of any third-party rights, including privacy or intellectual property rights
- Your violation of any applicable law or regulation
- Any content submitted from your account, including misleading, false, or inaccurate information
- Your wilful misconduct
11. Service Interruption
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.
12. No Waiver
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.
13. Severability
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.
14. Assignment
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.
15. Governing Law and Jurisdiction
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.
16. Changes to These Terms
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.
17. Contact
For questions about these Terms, or to exercise any rights under them, contact: tilman@quartermates.com
Privacy Policy
1. Controller
The controller responsible for processing your personal data is:
2. Data We Collect
We collect only the data necessary to provide the service. This falls into two formal categories:
Personal Data provided by users
- Account data: your name and email address at registration
- Boat data: boat name and type that you enter
- Race data: race schedules, meeting times, and locations you create
- Crew data: names and emails of crew members you invite
- Availability data: RSVPs (yes/no/maybe) submitted by crew
- Standby desk data: if you register at a yacht club's standby desk on race day, the club records your name, phone number and — optionally — email address and experience notes, and shares your name and phone number with the skipper of the boat you are assigned to
Usage Data (collected automatically)
- IP addresses and domain names of computers used to access the service
- Time and method of requests to the server
- Browser type and operating system
- Other parameters about the device and IT environment
- Analytics data (only with your consent): pages visited, approximate location, device and browser characteristics, collected via Google Analytics 4 after you accept our consent banner
- Product usage data (logged-in users): when you use the service while logged in, we record which core features you use (e.g. creating a race, submitting an RSVP, sending an invite) together with your account ID and a timestamp. This first-party data is stored on our own infrastructure (Supabase), is never shared with advertising or analytics networks, and is used solely to understand and improve how the service works (legitimate interest, Art. 6(1)(f) GDPR)
- Error reports: if the application encounters a technical error, technical details of the error (browser, page, error message) may be sent to our error-tracking processor Sentry so we can fix it. Error reports are configured not to include personal data
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.
3. Purpose and Legal Basis
Your data is processed for the following purposes:
- Providing the service — enabling skippers to manage their crew and races, and enabling crew to confirm availability. Legal basis: performance of a contract (Art. 6(1)(b) GDPR / AVG)
- Hosting and backend infrastructure — serving and storing application data via our sub-processors. Legal basis: performance of a contract (Art. 6(1)(b) GDPR)
- Legal obligations and enforcement — complying with applicable law, responding to enforcement requests, protecting the Owner's rights and interests, and detecting or preventing fraudulent or harmful activity. Legal basis: legal obligation (Art. 6(1)(c)) or legitimate interests (Art. 6(1)(f))
- Analytics — understanding how visitors use our website via Google Analytics 4, in order to improve the service. Analytics runs only after you accept our consent banner, and you may withdraw consent at any time. Legal basis: consent (Art. 6(1)(a) GDPR)
4. Methods and Place of Processing
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.
5. Data Retention
Data is retained for as long as necessary for the purposes for which it was collected:
- Data processed for the performance of a contract is retained until the contract has been fully performed
- Data processed on the basis of legitimate interests is retained as long as needed for those purposes
- Standby desk registrations are automatically deleted 30 days after the race — unless you create a QuarterMates account (e.g. from a standby invitation), in which case your data is kept under the normal account rules above for as long as the account exists
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.
6. Third Parties and Data Processors
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.
7. Your Rights (AVG / GDPR)
Under the AVG (Algemene Verordening Gegevensbescherming / GDPR), you have the right to:
- Access (Art. 15): request a copy of the personal data we hold about you
- Rectification (Art. 16): request correction of inaccurate data
- Erasure (Art. 17): request deletion of your data ("right to be forgotten")
- Restriction (Art. 18): request restriction of processing in certain circumstances
- Portability (Art. 20): receive your data in a portable, machine-readable format
- Object (Art. 21): object to processing based on legitimate interests at any time, including for direct marketing purposes (no justification required for marketing objections)
- Withdraw consent: where processing is based on your consent, you may withdraw it at any time without affecting the lawfulness of prior processing
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.
8. Legal Action
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.
9. Security
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.
10. Cookie and Tracker Policy
For information about how we use cookies and tracking technologies, see the section below.
11. Changes to This Policy
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.