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Privacy policy

Last updated November 08 2026

The short version

Your campaigns, your notes and everything said at your table stay on your computer. We never receive them. We only keep what's needed to run your account and your subscription: your email address, how you sign in, and the state of your subscription. We don't sell personal information, show ads or use tracking cookies.

This policy explains how GM Companion (“we”, “us”) handles personal information in the GM Companion desktop app and on this website. If something is unclear, write to support@gm-companion.com.

What stays on your computer

These never leave your computer unless you choose to send them somewhere:

  • Your campaigns: NPCs, places, notes, players' character sheets, encounters, maps, pictures, roll tables and session transcripts are saved as files in a folder on your computer.
  • What the microphone hears: when listening is on, speech is turned into text on your computer. Audio isn't sent to us or to anyone else. If you record a session, the recording is saved with the campaign on your computer.
  • Your AI settings: if you add an API key for an AI provider, it's stored encrypted on your computer with your operating system's protection.

Because we don't have these files, we can't recover them for you. Keep backups, for example with the app's export or by copying the campaigns folder.

What we collect

InformationWhy
Your email address and an account IDTo create your account, send sign-in codes and recognize you when you sign in.
If you sign in with Google or Discord: the name, email address and profile picture they shareTo sign you in with that account. We don't receive your Google or Discord password.
Your subscription: its status, plan, trial and renewal dates, and a customer ID from our payment providerTo know whether the app may open, and to show you your subscription in the app.
Subscription checks: the account and the time of each checkThe app checks your subscription at startup and every few hours while it's open.
Messages you send usTo answer you.

We don't receive your card number or other payment details. Checkout is run by Stripe and sold through Link, Stripe's checkout service, which collects your payment details, billing address and tax information under its own privacy policy.

Services that receive information

We use these providers to run GM Companion. Each receives only what it needs to do its part:

  • Supabase hosts accounts and sign-in, stores the account and subscription information above, and sends sign-in codes by email.
  • Stripe and Link process payments, handle sales tax, receipts and refunds, and send emails about your subscription. See Stripe's privacy policy and Link's privacy policy.
  • Google and Discord, only if you choose to sign in with them.
  • GitHub hosts the installers and updates. When the app checks for updates, or this website looks up the latest version, GitHub sees your IP address, as any website would.
  • Hugging Face hosts the speech model the app downloads the first time you turn on listening. It sees your IP address when the download happens.

These providers may store information outside Quebec and Canada, including in the United States, where it is subject to local laws. We choose providers with protection we consider adequate and limit what they receive.

AI providers you choose

AI features are optional. If you connect a cloud AI provider such as Anthropic (Claude) or OpenAI (ChatGPT) with your own key, the app sends the text needed for each request, like a page you're importing or a session transcript you want summarized, directly from your computer to that provider. It doesn't go through us, and that provider's terms and privacy policy apply. If you use a model on your own computer (Ollama or LM Studio), nothing leaves your computer.

This website

This website doesn't use cookies, analytics or advertising. Our hosting provider keeps standard server logs (IP address, pages requested, browser type) for security and troubleshooting. The download button asks GitHub for the latest version from your browser.

How long we keep it

  • Account and subscription information: while your account exists. If you ask us to delete your account, we delete it within 30 days.
  • Records of payments and invoices: as long as tax and accounting laws require, kept by Stripe and Link.
  • Messages to support: up to two years after the conversation ends.

Your rights

You can ask us to:

  • tell you what personal information we have about you and give you a copy, including in a structured, commonly used format;
  • correct information that's inaccurate or incomplete;
  • delete your account and its information, or stop using it;
  • withdraw a consent you've given.

Write to support@gm-companion.com. We answer within 30 days. We may ask you to confirm your identity first. You can also cancel your subscription and manage your payment details at any time from the app, under Options, Account, Manage subscription.

If you're not satisfied with our answer, you can complain to the Commission d'accès à l'information du Québec or the Office of the Privacy Commissioner of Canada, or the data protection authority where you live.

Security

Connections to our services are encrypted. Sign-in uses one-time codes or your Google or Discord account, so there's no GM Companion password to steal. Your subscription status is signed by our server so it can't be faked on your computer. Access to account information is limited to what's needed to run the service. If a breach affecting your information could cause you serious harm, we'll tell you and the authorities as the law requires.

Children

GM Companion is meant for adults and isn't directed at children under 14. We don't knowingly collect their personal information. If you think a child has given us information, write to us and we'll delete it.

Changes

If we change this policy, we'll update the date at the top. If the change is significant, we'll also tell you by email or in the app before it takes effect.

Contact

The person responsible for protecting personal information is Jeffrey Kingsbury, Owner. You can reach them at support@gm-companion.com.

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© 2026 GM Companion. GM Companion is independent software and is not affiliated with, endorsed or sponsored by Wizards of the Coast. Dungeons & Dragons and D&D are trademarks of Wizards of the Coast LLC.

The app includes material from the System Reference Document 5.2 by Wizards of the Coast LLC, available at dndbeyond.com/srd, licensed under CC BY 4.0.