Terms of use

Last updated 12 November 2026. These terms apply when you use Footprint, which Otter Lake runs.

The service

Footprint is a personal travel atlas, free to use. You sign in with a code sent to your email address. Each account has one atlas.

Your atlas

What you add stays yours. Footprint stores it and processes it only to run Footprint for you, as the privacy policy describes. Export your atlas at any time to keep a copy.

The chat

An AI model reads what you type or say in the chat. It can get a place, a date or a mode wrong, so Footprint shows every change on a card before it saves anything. Check the card before you save. Each account can send 100 messages a day.

Maps and places

The map, the places and the road lines come from open data, listed under Credits. They can be wrong or out of date.

Fair use

Use Footprint for your own travel record. Do not try to reach other people’s atlases, to overload the service, or to send requests in bulk with a script.

Availability

Footprint comes as it is. Otter Lake does not promise that it is always available or free of errors.

Ending your account

Delete your account at any time under Settings. It deletes your whole atlas.

Changes, law and contact

When these terms change, the date at the top changes with it. These terms fall under the law of the Netherlands, and the courts of Amsterdam decide any dispute about them. As a consumer, you keep the protection of the mandatory law of the country where you live. Write to hello@otterlake.co with any question.