Anchorline Terms of Service

Last updated: 8 November 2026

Draft. This text has not yet been reviewed by a lawyer. It is published for transparency while that review is arranged; the reviewed version will replace it with a new "last updated" date.

These terms apply to the Anchorline app and to the Anchorline cloud service. Please read them; by using the app or the service you agree to them. Where these terms say "we", "us" or "Anchorline", they mean the publisher named below. "You" means the person using the app.

1. Who we are

Anchorline is published by Egbert De Pauw, an individual established in the Netherlands. Contact: support@anchorline.eu.

2. The app

• The Anchorline app is free. You may install it on as many of your own devices as you like.
• The app's source code is released under the GNU General Public License version 2, with the additional permissions stated in the source repository. That licence governs the code. These terms govern the service, the copies distributed through the app stores and this website, and your account.
• The name "Anchorline" and its logo are not covered by the licence and may not be used for a modified version.
• Copies obtained from the App Store, Mac App Store or Google Play are also subject to that store's standard licence terms, which apply in addition to these.

3. Safety

Anchorline is a logbook and an analysis tool. It is not a dive computer, not a decompression device and not a substitute for your training, your judgement or your dive team's procedures.

• The dive computer you dive with is the authority during a dive. What Anchorline shows afterwards is a reading of the data that computer recorded, and it can be incomplete or wrong, for example because of a transfer error, a firmware difference or a bug.
• Cell-health indications, scrubber-time figures, gas-density, END, surface-GF, CNS and OTU values are informational. They are computed from logged data using published models and your own settings. They do not detect every failing cell and do not replace cell checks, calibration, pre-dive checks or manufacturer limits.
• The planner and blender produce calculations, not advice. Always verify a plan independently, analyse every gas with a calibrated analyser before diving it, and dive within your training.
• Diving, and rebreather diving in particular, is dangerous. You dive at your own risk. We accept no responsibility for any injury, death or loss arising from a dive, whatever Anchorline showed before or after it.

4. Your account

• You need an account only for the paid cloud features. The rest of the app works without one.
• You must be at least 16 years old to create an account.
• One account per person. Keep your sign-in details to yourself and tell us at once if you believe someone else is using your account.
• You can delete your account at any time in the app under Settings → Sync → Delete account, or as described at https://anchorline.eu/delete-account. Deletion is immediate and permanent.

5. The subscription

What it covers. Cloud sync of your dive log across your devices, attachments (photos and files stored with your dives), and two-way sync with Subsurface Cloud. Everything else in the app stays free.

Plans and trial. Monthly and yearly plans with the same features; you can switch between them. A new subscriber gets a 30-day free trial, once, with a payment method taken up front; you are charged when the trial ends unless you cancel before then. Prices are shown in the store or on the checkout page before you buy and include VAT where it applies.

Where you buy decides who bills you.

• Bought in the App Store, Mac App Store or Google Play: Apple or Google is the seller. Billing, renewal, cancellation and refunds follow that store's rules and are managed in your store account.
• Bought on anchorline.eu: Paddle.com Market Ltd is the merchant of record and the seller; Paddle's checkout terms apply to the payment, and Paddle issues your invoice. Cancellation and refunds for website purchases are handled through the link in your receipt or by emailing us.

Cancelling. Cancel whenever you like. The subscription stays active until the end of the period you have paid for and does not renew.

Right of withdrawal. If you are a consumer in the EU and buy on the website, you may withdraw within 14 days of purchase for a full refund, unless you have asked for the service to start immediately and have used it. Store purchases follow the store's refund policy.

When a subscription ends.

• Sync and uploads stop. Every one of your devices keeps its local logbook, and the app keeps working.
• We keep your server copy for 6 months so you can come back. We send reminders before it is deleted. After 6 months the server copy is deleted; your devices still hold their data.
• Subscribing again restores sync. Anything added on a device meanwhile is uploaded then.

Price changes. We may change prices for future periods. You will be told at least 30 days in advance, in the app or by email, and the new price applies only from your next renewal. If you do not agree, cancel before then.

Access given by us. We may grant an account access to the paid features for a period or indefinitely, for example to testers or contributors. A grant can be withdrawn with notice.

6. Your data

• Your dive log is yours. It lives on your devices whether or not you subscribe. With Subsurface Cloud sync you can also keep a copy in your own Subsurface account, and on request we provide your account's data in a machine-readable format.
• We process personal data as described in the Privacy Policy at https://anchorline.eu/privacy.
• You are responsible for the content you attach to dives. Do not upload material you have no right to, or that is unlawful.

7. Fair use

• Use the service for your own dive logs. It is not a general file store.
• Do not try to gain access to the paid features, to other people's data or to our systems other than through the app and a valid subscription. The open-source licence lets you study and change the app; it does not entitle a changed app to use our servers without paying.
• We may apply reasonable storage limits to attachments and will tell you if you reach them.

8. Availability and changes

• We run the service with care but without a guarantee of uninterrupted availability. There is no service-level agreement.
• We may change, suspend or discontinue the app or the service. If we discontinue the service, we will give at least 90 days' notice by email and in the app, keep sync working until then so that every one of your devices holds a full copy, and refund the unused part of any yearly subscription.
• We may update these terms. You will be told at least 30 days before a material change takes effect. If you keep using the service after that date you accept the new terms; if you do not agree, cancel and, if you wish, delete your account.

9. Liability

• Nothing in these terms limits any liability that cannot be limited by law, including liability for death or personal injury caused by our negligence, or your statutory rights as a consumer.
• Subject to that, we are not liable for indirect or consequential loss, or for loss of data of which your devices held a copy, and our total liability for a subscription is limited to the amount you paid us for it in the 12 months before the event.
• The safety section above applies regardless of this section.

10. Ending these terms

• You can stop using the app at any time, and delete your account as described above.
• We may suspend or close an account that breaks these terms, with notice unless the breach is serious or notice is not possible. We will tell you why and give you the chance to export your data except where the law prevents it.

11. Law and disputes

These terms are governed by Dutch law. Disputes go to the competent court in the Netherlands. If you are a consumer living in another EU country, you also keep the protection of the mandatory consumer law of your own country, and you may bring a claim in your own courts.

12. Contact

Questions about these terms: support@anchorline.eu.