Terms of Service
Last updated: 2 October 2026
These terms apply when you use Subsurface (subsurface.so) or book a review. By using the service you agree to them. If you don't, please don't use it.
1. Who we are
Subsurface is a product of Marv Naka, a business registered in Belgium.
Based in Brussels, Belgium.
Email: marv@marvnaka.com
2. The service
Subsurface is a brand discovery session conducted by an AI. You answer up to 25 questions, one at a time, for about 35 minutes. From your answers, an AI writes your brand strategy, which you receive on a page at a private link, by email and as a Notion page, with a Hiring Compass.
You can also book a 60-minute review with Marv on a video call, to go through your strategy together.
We may improve or change the service at any time.
3. Prices
- The strategy is free for the founding batch (the first 25 strategies from launch). After that, new sessions may pause or follow a waitlist; any price will be shown before you start.
- The review costs €75 for 60 minutes, paid when you book through cal.com, by Stripe. Cancellations and refunds follow our Refund Policy.
4. Who can use it
You must be at least 18 and able to enter into a contract. Subsurface is made for founders and the brand strategists who work with them.
5. Your content
Your answers and the strategy written from them are yours. You can use them for any purpose.
You allow us to process them only to provide the service: to run the session, write and store your strategy, publish your Notion page at its link, send your emails, and prepare a review you booked. Your Notion page includes the full transcript of your session and opens for anyone who has its link; we never list or publish these links. We may learn from strategies to improve the product, without sharing your content with anyone. Our AI provider does not train its models on it. Details are in our Privacy Policy.
6. If a strategist sent you
If you tick “My brand strategist sent me here”, your strategy and your answers are sent to the strategist email address you enter. Please make sure it is correct.
7. Fair use
Please don't:
- enter content that is unlawful or infringes anyone's rights;
- enter someone else's email address without their permission;
- try to disrupt the service, get around its limits, or probe it for weaknesses (good-faith security reports to marv@marvnaka.com are welcome);
- use automated tools to run sessions or copy the service.
We may suspend access if these terms are broken.
8. What a strategy is, and isn't
Your strategy is written by an AI from what you said. It is a starting point for your brand thinking, and it can contain mistakes: read it with care before you rely on it. It is not legal, financial, trademark or investment advice. Before you use a name, tagline or claim, check that it is available and that you are allowed to use it.
The service is provided as it is. We do not guarantee any particular business result.
9. Liability
As far as the law allows, we are not liable for indirect losses (such as lost profit, revenue or data) arising from the use of the service, and our total liability for any claim is limited to the amount you paid us in the 12 months before it. These limits do not apply where the law does not allow them, for example in case of intent or gross negligence.
10. Changes to these terms
If we change these terms, we update the date at the top. Using the service after a change means you accept the new version.
11. Law
Belgian law applies, and the courts of Brussels have jurisdiction, without taking away any protection you have as a consumer under the law of the EU country where you live.