Legal
Cookie policy
Last updated: 20 October 2026
Draft. This page has not been reviewed yet and may change before GrammarDeck launches.
This website uses very few cookies, and only the ones it needs to work. We use no advertising cookies, no tracking cookies and no analytics cookies, so there is no cookie banner to click away.
1. What cookies are
Cookies are small files a website saves in your browser. Similar tools, such as your browser's local storage, work the same way, and this policy covers them too.
2. Cookies we set
| Name | What it does | How long |
|---|---|---|
| __gd_account | Keeps you signed in on the account page after you sign in or open it from the app. Only our server can read it (HTTP-only, secure). | Ends after 1 hour without use, after 12 hours at most, or when you sign out |
| gd_signed_in | Only says “signed in” (its value is 1), so the menu at the top of each page can show your account straight away. It holds no secret and can't sign anyone in. | Same as __gd_account |
| __cpanel_session | Keeps our own staff signed in to the admin tools. Never set for customers. | 8 hours |
When you sign in on this website, Google Firebase handles the sign-in in your browser. We set it to keep nothing after the page closes: your session lives only in the cookie above.
3. Cookies from payment providers
When you click a button to subscribe, the payment window of Razorpay (in India) or Paddle (outside India) opens. These companies may set their own cookies to process the payment and to prevent fraud. Their own policies cover those cookies: Razorpay privacy policy and Paddle privacy notice.
4. Error reports
If a page on this website breaks, a report of the error is sent to Sentry so we can fix it. This uses no cookies, does not record your screen and never includes your IP address or what you typed.
5. Your choices
You can block or delete cookies in your browser settings. If you block our cookie, you can still read this website, but you will not be able to sign in to the account page.
6. Questions
Email privacy@grammardeck.com. Our privacy policy explains everything else we do with data.