Terms of Service

These Terms of Service ("Terms") govern your access to and use of the mrkdwn application, the buenalabs.io website, and any related services (collectively, the "Services") provided by Buena Labs Inc. ("Buena Labs", "we", "our", "us"). Please read them carefully.

Effective date: 2026-05-12

1. Acceptance of Terms

By installing, accessing, or using the Services, you agree to be bound by these Terms and our Privacy Policy. If you do not agree, do not use the Services.

You must be at least 13 years old to use the Services (16 in the European Economic Area). If you are using the Services on behalf of an organization, you represent that you have authority to bind that organization to these Terms.

2. The Services

mrkdwn is a cross-platform Markdown editor with local-first storage. The core offering includes:

• A native editor for creating and managing plain Markdown files on your device
• Optional cloud sync via Apple iCloud Drive (and additional providers as released)
• Optional AI writing assistance, routed to third-party AI providers you select (Anthropic by default; others on request)
• Optional encrypted web publishing (when generally available)

We may add, modify, or remove features at any time. We will provide reasonable notice for material removals that affect existing users.

3. Your Responsibilities

Account Security

You are responsible for safeguarding any credentials used to access the Services, including third-party API keys you configure (e.g., your own AI provider key). Notify us at security@buenalabs.io if you suspect unauthorized access.

Acceptable Use

You agree not to:

• Use the Services for unlawful, infringing, or harmful purposes
• Reverse-engineer, decompile, or attempt to extract source code, except where permitted by law
• Interfere with the integrity, performance, or security of the Services
• Circumvent any rate limits, usage quotas, or access controls
• Use automated means to access the Services in a way that imposes an unreasonable load
• Submit content that violates the rights of others or applicable law

Your Content

You are responsible for the notes and other content you create using mrkdwn. Because notes are stored locally on your device (and optionally synced through a provider you choose), you retain control of, and responsibility for, that content.

4. Intellectual Property

Your Content

You own everything you write. Buena Labs does not claim ownership of your notes, files, or any content you create with mrkdwn. We do not need a license to your content because we do not store it on our servers (cloud sync, when used, runs through a third-party provider you authorize).

Our Services

The mrkdwn application, our website, branding, and proprietary code are owned by Buena Labs and licensed to you under these Terms. You receive a non-exclusive, non-transferable, revocable license to use the Services for their intended purpose. This license does not grant you the right to redistribute, sublicense, or sell the Services.

Open-Source Components

The Services include open-source software components. Those components are licensed under their respective open-source licenses, which take precedence over these Terms for the component in question. A list of components and their licenses is available in the application's About → Acknowledgements screen.

Feedback

If you send us feedback or suggestions, you grant us a non-exclusive, royalty-free, perpetual license to use that feedback to improve the Services, without obligation to you.

5. AI Features

mrkdwn includes optional AI writing assistance. When you use these features:

• Your prompt and any selected content are transmitted to the AI provider you have selected (e.g., Anthropic, OpenAI). We do not retain or relay these requests through our servers.
• The provider's terms and privacy policy govern their handling of your data. You are responsible for reviewing them.
• AI outputs are generated by third-party models and may be inaccurate, incomplete, biased, or otherwise unfit for purpose. You are responsible for reviewing AI-generated content before relying on or publishing it.
• You retain ownership of AI-generated content to the extent permitted by the provider's terms. Buena Labs makes no copyright warranty over AI outputs.
• If you supply your own API key, you are bound by the provider's pricing and rate limits. Buena Labs is not a party to your contract with the provider.

6. Subscriptions and Payments

Tiers

mrkdwn offers a free tier with core functionality and one or more paid tiers (collectively, "Pro") that unlock advanced features. Specific feature inclusions, prices, and trial terms are described on our apps page and at the point of purchase.

Billing

Subscriptions are billed through the platform you purchase on (e.g., the Apple App Store or Google Play Store). Each platform's terms govern payment, renewal, and tax handling. We do not directly process or store your payment information.

Auto-Renewal

Subscriptions auto-renew at the end of each billing cycle unless canceled at least 24 hours before renewal, per the platform's policy. You can manage and cancel subscriptions in your Apple ID or Google Play account settings.

Refunds

Refunds are governed by the policies of the platform where you made the purchase. We will support reasonable refund requests escalated through that platform.

Price Changes

We may change subscription prices. Existing subscribers will be notified at least 30 days before the new price takes effect at their next renewal. You can cancel at any time before the change applies.

7. Disclaimers and Limitation of Liability

As-Is

THE SERVICES ARE PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE. We do not warrant that the Services will be uninterrupted, error-free, or that any defects will be corrected.

Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, BUENA LABS AND ITS OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOSS OF PROFITS, REVENUE, DATA, OR GOODWILL, ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF THE SERVICES.

OUR AGGREGATE LIABILITY UNDER OR IN CONNECTION WITH THESE TERMS SHALL NOT EXCEED THE GREATER OF (A) THE AMOUNTS YOU PAID US FOR THE SERVICES IN THE 12 MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM, OR (B) USD 50.

Some jurisdictions do not allow the exclusion of certain warranties or limitations of liability — in those jurisdictions, the above limitations apply only to the extent permitted by law.

8. Termination

By You

You can stop using the Services at any time. To delete your account and associated data, follow the procedure on our Data Deletion page.

By Us

We may suspend or terminate your access to the Services if you materially breach these Terms, if required by law, or if continued provision becomes commercially impractical. We will provide notice where reasonably possible.

Effect of Termination

Upon termination, your right to use the Services ends. Local files on your device remain yours and are not affected by termination of our Services. Sections that by their nature should survive — including ownership, disclaimers, limitations of liability, and governing law — will survive.

9. Changes to These Terms

We may update these Terms from time to time. For material changes, we will provide at least 30 days' notice through an in-app banner and, if you have an account, by email. The "Last updated" date at the top of this page reflects the most recent revision. Your continued use of the Services after the effective date constitutes acceptance of the updated Terms. If you do not agree, you may stop using the Services and delete your account.

10. Governing Law and Dispute Resolution

These Terms are governed by the laws of the State of Delaware, USA, without regard to its conflict-of-laws principles. Any dispute, claim, or controversy arising out of or relating to these Terms or the Services shall be resolved by binding arbitration administered by a recognized arbitration body in Wilmington, Delaware, USA, under its applicable rules. Judgment on the award may be entered in any court of competent jurisdiction.

Class action waiver: You and Buena Labs agree to bring disputes only in an individual capacity, not as a plaintiff or class member in any purported class or representative proceeding.

Small claims exception: Either party may bring an individual action in small claims court instead of arbitration if the dispute qualifies.

EU consumers: Nothing in these Terms limits your statutory consumer rights, including the right to bring proceedings in the courts of your country of residence.

11. Miscellaneous

• Entire agreement: These Terms and our Privacy Policy constitute the entire agreement between you and Buena Labs regarding the Services.
• Severability: If any provision is held unenforceable, the remaining provisions remain in full effect.
• No waiver: Failure to enforce a provision does not waive the right to enforce it later.
• Assignment: You may not assign these Terms without our consent. We may assign them to an affiliate or in connection with a merger or sale of assets.
• Notices: We may give notice through the Services, the website, or to the contact email associated with your account.

Contact

Questions about these Terms? Email legal@buenalabs.io. For privacy questions, see our Privacy Policy. For support, see /support.