Privacy policy

What stays on your device. Your filters, simulator settings, saved decks, card collection and Pro key are stored in your browser's local storage on your device. If you have Pro, your saved decks, card collection and list edits are also saved to your account on our host (Cloudflare) so they follow you to your other devices.

Payments. Pro is sold through Stripe. Stripe collects your payment details and email under Stripe's privacy policy. We receive your email and a customer ID from Stripe to confirm your subscription; your Pro key contains that customer ID and email. We never see your card number.

Google Play purchases. In the Android app, Pro is sold through Google Play, which handles your payment details under Google's privacy policy. Google tells us the purchase token, the plan and when it renews or ends; we keep these with your account's email to confirm Pro. Cancel or manage it in Google Play → Subscriptions.

Accounts and sign-in. You can sign in with Google or with a one-time code sent to your email. With Google, Google tells us your email address and confirms it is verified; we don't get your Google password, contacts or anything else (Google's privacy policy). Email codes are sent through our email provider, Resend (Resend's privacy policy). Your account is your email address: we use it to find your Pro subscription in Stripe and to keep your cloud save. You stay signed in on one device at a time, so we store a random ID for your current device with your account (and with your subscription in Stripe).

OPTCG Daily reminders. If you sign up for the daily email, we keep your email address to send one email a day when the new card is live, sent through Resend. You confirm first, and every email has a one-tap unsubscribe link that deletes your address. If you turn on notifications, your browser gives us a push address (no name or email) that we use only for the daily reminder; turning notifications off deletes it.

Buy links. Card buy buttons open TCGplayer, eBay or other shops. Some are affiliate links, so the shop can tell a purchase came from us and may pay us a commission. Those shops handle your visit under their own privacy policies.

Ads. Free users see a banner ad served by Google AdSense. Google and its partners use cookies or similar technology to show and measure ads, which may be personalised based on your visits to this and other sites. You can turn off personalised ads at Google Ad Settings; see how Google uses data from partner sites. In the EEA, UK and Switzerland you'll be asked for consent first. Pro users see no ads.

No selling of data. We don't sell personal data. Our host may keep standard server logs (IP address, time, page) for security and operations.

Children. The app isn't directed at children under 13, and Pro purchases require an adult's payment method.

Deleting your data. Clear the site's data in your browser or uninstall the app. To delete your account's cloud save, email us from the address you sign in with. To delete payment records, cancel in the subscription portal (or in Google Play → Subscriptions for app purchases) and email us.

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