Terms of Use

These Terms of Use govern your use of Checkmate, which is operated by Edge Case LLC. By creating an account, signing in, or otherwise using Checkmate, you agree to these terms and to our Privacy Policy.

Effective date: May 12, 2026

If you do not agree to these terms, do not use the service.

• You must be legally able to enter into a binding agreement to use Checkmate.
• You are responsible for the accuracy of your account information and for maintaining the security of your account and devices.
• You may not share access in a way that bypasses seat, account, or security controls.

You keep ownership of the content you submit to Checkmate, including project data, comments, files, invitations, and prompts.

You give us a limited right to host, process, transmit, display, and use that content only as needed to operate, secure, support, and improve the service.

You are responsible for making sure you have the rights to upload or share any content you place in the product.

Checkmate includes shared teams, projects, assignments, invitations, comments, and attachments. If you invite or authorize other users into a workspace, they may be able to view or act on content based on the permissions you grant.

You are responsible for managing who you invite into shared work and for using sharing features appropriately.

Checkmate may offer optional paid plans, including auto-renewing subscriptions such as Pro monthly or Pro yearly. The plan title, subscription length, and current price are shown before purchase.

Purchases made in the iOS app are processed by Apple through your App Store account. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period.

You can manage or cancel App Store subscriptions in your Apple ID account settings. Apple handles App Store billing, cancellation, and refund requests according to its terms and policies.

Paid limits and features may change for future billing periods, but the limits available to you before purchase will be honored for the current paid period unless a change is required by law, security, or abuse prevention.

You may not use Checkmate to:

• Break the law or violate another person's rights.
• Upload malware, harmful code, deceptive content, or files intended to disrupt the service.
• Attempt unauthorized access, reverse engineer protected systems, or interfere with security or availability.
• Use the service to spam, harass, impersonate others, or distribute unlawful or infringing content.
• Use automated means to scrape, overload, or abuse the service beyond normal intended use.

Checkmate may use third-party AI models to generate planning drafts, clarifying questions, summaries, or related suggestions.

AI output may be incomplete, inaccurate, or unsuitable for your situation. You are responsible for reviewing any AI-generated result before relying on it or turning it into real work.

Do not use AI output from Checkmate as a substitute for legal, medical, financial, safety-critical, or other professional advice.

Checkmate relies on third-party providers for authentication, email delivery, file storage, AI processing, and related infrastructure. We are not responsible for outages, policy changes, or other issues caused by those third-party services.

We may change, suspend, or discontinue all or part of the service at any time, including features and integrations.

We may suspend or terminate access if we reasonably believe you have violated these terms, created security risk, or used the service in a harmful or unlawful way.

Checkmateis provided on an "as is" and "as available" basis to the fullest extent permitted by law. We do not guarantee uninterrupted operation, error-free performance, or that the service will meet every use case or workflow requirement.

You are responsible for maintaining your own records and backups for business-critical information.

To the fullest extent permitted by law, Edge Case LLC will not be liable for any indirect, incidental, special, consequential, or exemplary damages, or for any loss of profits, revenues, goodwill, data, or business interruption arising from or related to your use of Checkmate.

To the fullest extent permitted by law, the total liability of Edge Case LLC for claims arising out of or relating to the service will not exceed the greater of the amount you paid us for the service during the 12 months before the claim arose or $100 USD.

We may update these terms from time to time. If we make a material change, we will update the effective date on this page and may provide additional notice inside the product or by email.

Questions about these terms can be sent to Edge Case LLC at [email protected].