Niv Terms of Use

Effective date: October 7, 2026

The short version

  • Niv is free today: the desktop app, sync, collaboration and publishing. Some features may become paid later, always with notice first.
  • Your notes are yours. They live as open Markdown files on your Mac. We only use them to sync, host and — if you publish — show them.
  • What you publish is public, and you’re responsible for it. Don’t use Niv to harm people or break the law.
  • The AI chat runs AI tools you install, under your own accounts and their terms. We don’t control what they say or do.
  • We work hard to keep Niv running and your notes safe, but we can’t promise it will never fail. Keep your Markdown files: they are your copy.
  • You can leave at any time and take everything with you. We can suspend accounts that break these terms.
  • These terms follow Brazilian law. If you are a consumer, you keep every right your local law gives you, including suing where you live.

The rest of this page says the same thing in full.

1. Who we are and what this is

These Terms of Use (“Terms”) are an agreement between you and GABRIEL ARAUJO RUDY CONSULTORIA EM TECNOLOGIA DA INFORMACAO, an individual entrepreneur business (Empresário Individual, ME) registered in Brazil under CNPJ 48.868.347/0001-87, with its registered office at Avenida Prefeito Osmar Cunha, 416, Sala 1108, Centro, Florianópolis/SC, CEP 88015-100, Brazil, trading as Niv (“Niv”, “we”, “us”). Contact: hey@niv.md.

They cover the Niv desktop app, the website niv.md, and Niv’s sync, collaboration and publishing services (together, “the Service”). By downloading the app, creating an account or using the Service, you accept these Terms. Our Privacy Policy explains how we handle personal data and is part of these Terms.

2. The Service

  • The desktop app edits a folder of Markdown files on your Mac. You can use it without an account.
  • Sync keeps a folder connected to a Space in step across your devices, through our servers.
  • Collaboration lets you invite people into a Space. Every member can read and edit its notes.
  • Publishing puts a note on a public web page at niv.md/p/….
  • The AI chat connects to AI tools you install yourself (section 7).
  • Search. Niv processes your synced notes on its servers to make them searchable, including by integrations such as the MCP server (see the Privacy Policy).

All of this is free today, and we don’t process payments today.

Paid features. Some features, including AI features offered by Niv itself, may become paid in the future. We’ll give you notice before any paid feature starts, and it will come with its own terms that you accept before paying. Nothing will be charged without your agreement.

We are constantly improving Niv, so features may change, be added or be removed. If we remove something important you rely on, we’ll tell you in advance when we reasonably can.

3. Who can use Niv

You must be at least 13 years old, and at least 16 in the European Economic Area or the United Kingdom where local law sets that age for consent. If you are under 18 (or under the age of majority where you live), you may use Niv only with the permission of a parent or guardian, who accepts these Terms for you.

If you use Niv for an organization, you confirm you are allowed to accept these Terms for it.

4. Your account and its security

  • Give us an email address you control, and keep it up to date.
  • Keep access to your email, your Google or GitHub account and your devices secure: anyone with them can sign in as you.
  • Tell us at hey@niv.md right away if you think someone else has accessed your account.
  • You are responsible for what happens in your account, unless it results from our failure.

5. Your content is yours

“Your content” means your notes, files, images and anything else you put into Niv.

  • You own your content. These Terms don’t transfer any of your rights to us.
  • What you allow us to do. You give us a worldwide, non-exclusive, royalty-free license to store, copy, process, transmit and display your content only as needed to run the Service for you: to sync it between your devices, to show it to the members of the Spaces you put it in, to keep its history, to make it searchable for you, and — only when you publish a note — to display it publicly and let search engines index it. This license ends when you delete the content or your account, except for copies already made public by you, copies kept in backups for a limited time, and what we must keep by law.
  • We don’t sell your content, use it for advertising, or use it to train AI models.
  • You confirm that you have the rights needed to put your content into Niv, and that it doesn’t break these Terms or the law.
  • Other members’ content. In a shared Space, content belongs to whoever created it, or as the members agree among themselves. Niv doesn’t take sides in disputes between members.

6. Published content and acceptable use

When you publish, your note becomes public and anyone can read it, copy it or link to it. You are responsible for what you publish. Unpublishing stops our page, but we can’t remove copies other people or search engines have already made.

You agree not to use Niv to:

  • break the law, or help someone else break it;
  • infringe copyright, trademarks, privacy or other rights of others;
  • publish personal data about other people without a lawful basis, or harass, threaten or defame anyone;
  • publish child sexual abuse material, content that promotes violence or terrorism, or hate speech;
  • distribute malware, phishing or spam;
  • try to access accounts, Spaces or systems you’re not allowed into, probe our security, or overload the Service;
  • resell or copy the Service, or get around its limits.

We may remove published content, or limit or suspend an account, when we reasonably believe it breaks these Terms or the law, or when a court or authority orders it. Where we can, we’ll tell you why and give you a chance to respond.

Reporting content. To report a published page that you think is illegal or infringes your rights (including copyright, under the US DMCA), write to hey@niv.md with the page address, what’s wrong, and your contact details. If your content was removed and you think it was a mistake, reply to our notice.

7. AI tools you bring

The desktop app can run AI tools you install on your Mac (today Claude Code, Codex, Cursor, Grok, OpenCode or Antigravity), signed in with your own account. When you use them:

  • your prompts and the notes the tool reads go to that provider under its terms and privacy policy, which you are responsible for accepting and following;
  • the provider, not Niv, generates the answers, and may charge you for them under your agreement with it;
  • AI answers can be wrong, incomplete or inappropriate. Check them before relying on them;
  • depending on the access level you choose, the tool can create, edit, move or delete files in your folder. Choose that level carefully. Niv shows you what the tool asks to do, but you decide.

Niv is not responsible for the output of these tools or for what they do with the access you grant them, except where the problem is caused by a defect in Niv itself.

8. Your files stay open — no lock-in

Your notes are plain Markdown files on your Mac, which you can open, copy and move with any other app at any time. If you stop using Niv, or your account ends, the files on your Mac stay where they are. You can ask us at hey@niv.md for a copy of the data we hold about you.

9. Our rights

The Niv app, website, brand, logos and design are ours or our licensors’. These Terms give you a personal, non-exclusive, non-transferable license to use the app and the Service as offered, as long as you follow them. Some parts of Niv are open-source software under their own licenses, which prevail for those parts.

If you send us ideas or feedback, we may use them freely, without obligation to you.

10. Availability and warranties

We try to keep Niv available, fast and safe, and to protect your notes. But Niv is run by a small team, and it is provided “as is” and “as available”. To the extent the law allows, we don’t promise that it will be uninterrupted, error-free, or fit for a particular purpose, or that no data will ever be lost. Keep your Markdown files and make your own backups of what matters.

Nothing in these Terms limits rights you have as a consumer that cannot be waived under the law where you live, including, for Brazilian consumers, the Consumer Defense Code (Law 8,078/1990).

11. Limits on our liability

To the extent the law allows:

  • we are not liable for indirect, incidental, special or consequential damages, or for lost profits, revenue or data, that result from your use of Niv;
  • we are not liable for content created by other users, for AI tools you run (section 7), or for third-party services you connect;
  • our total liability for any claim related to the Service is limited to the greater of US$ 100 and the amount you paid us in the 12 months before the claim (today, nothing).

These limits do not apply to damages caused by our fraud, willful misconduct or gross negligence, to death or personal injury, or where the law does not allow them. If you are a consumer in Brazil, these limits apply only as far as the Consumer Defense Code permits, and do not exclude our liability for defects in the Service under its articles 14 and 51, I. Some US states and other countries don’t allow some of these exclusions, so they may not apply to you.

12. Indemnity

If you are not a consumer (for example, if you use Niv for a business), you agree to cover our reasonable costs and losses from third-party claims caused by your content or your breach of these Terms.

13. Ending your use

  • You can stop at any time. To delete your account and the data on our servers, email hey@niv.md. We’ll do it within 30 days, as described in the Privacy Policy. The files on your Mac are not affected.
  • We can suspend or end your account if you seriously or repeatedly break these Terms, if the law requires it, or to protect other users or the Service. Except in urgent cases, we’ll tell you first and give you time to get your data.
  • If we shut Niv down, we’ll tell you at least 60 days in advance, so you can make sure your files are complete on your Mac and get any data we hold.

Sections 5 (for content already public), 9, 10, 11, 12 and 15 continue after your use ends.

14. Changes to these Terms

We may update these Terms. If a change is significant, we’ll tell you in the app or by email at least 30 days before it takes effect, unless it’s needed sooner for legal or security reasons. If you don’t agree, you can stop using Niv and delete your account before the change applies. Continuing to use Niv after that means you accept the new Terms.

15. Governing law and disputes

These Terms are governed by the laws of Brazil.

We’d rather solve problems by talking: before going to court, please write to hey@niv.md, and we’ll try to resolve it within 30 days.

The courts of Florianópolis, State of Santa Catarina, Brazil, have jurisdiction over disputes about these Terms. However:

  • If you are a consumer in Brazil, you can always bring a claim in the courts where you live (Consumer Defense Code, art. 101, I).
  • If you are a consumer elsewhere, including in the United States, the European Union or the United Kingdom, you keep the protection of the mandatory laws of the place where you live, and you may bring a claim in the courts there where those laws allow.

There is no arbitration clause and no class-action waiver in these Terms.

16. General

  • If a court finds part of these Terms invalid, the rest still applies.
  • If we don’t enforce a right right away, we haven’t given it up.
  • You can’t transfer these Terms to someone else without our agreement. We may transfer them to a successor of our business, and we’ll tell you if we do.
  • These Terms, with the Privacy Policy, are the whole agreement between you and Niv about the Service.
  • These Terms are offered in English and Portuguese. For users in Brazil, the Portuguese version prevails. Elsewhere, the English version prevails.

17. Contact

GABRIEL ARAUJO RUDY CONSULTORIA EM TECNOLOGIA DA INFORMACAO (Niv)
CNPJ 48.868.347/0001-87
Avenida Prefeito Osmar Cunha, 416, Sala 1108, Centro, Florianópolis/SC, CEP 88015-100, Brazil
hey@niv.md

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