Dans MTG is built with privacy as a core principle. This policy explains exactly what data we collect, why, and how it is protected.
When you create an account, we store your email address and a hashed password (via Amazon Cognito). We do not store credit card numbers or payment information.
If you import a ManaBox CSV export or manually add cards, we store the card names, set codes, quantities, and conditions you provide. This data is associated with your account only and is not shared with other users.
When you scan a card image, we store the identified card data (name, set, foil status, etc.) keyed to the Facebook post URL. We do not store the original image — it is sent directly to the AI for analysis and immediately discarded. The extracted card data may be shown to other Dans MTG users who view the same Facebook post URL, so they do not need to re-scan it.
We maintain a log of credit debits and credits for your account for up to 90 days. This is used to display your balance history and to investigate any disputes.
We record aggregate counts of how many AI scans each user triggers. This is used solely to power the credit system and to detect unusual usage patterns that may indicate abuse.
All data is stored in Amazon Web Services (AWS) infrastructure in the Sydney (ap-southeast-2) region, using:
When you trigger a card scan, the image URL is sent to an AWS Lambda function which downloads the image and sends it to Amazon Bedrock (Claude AI) for analysis. The image bytes are used only for this single inference call and are never written to any storage service. The AI returns a JSON description of the card, which is what we store.
The free plan of Dans MTG includes advertisements served through Google AdSense on the DansMTG.com website. When you view an ad, Google may set cookies and collect data in accordance with their privacy policy: policies.google.com/privacy.
Paid plan subscribers do not see advertisements.
The DansMTG.com website uses cookies for two purposes:
If you are located in the European Economic Area (EEA), the United Kingdom, or Switzerland, you will be shown a consent banner the first time you visit, powered by a Google-certified Consent Management Platform. You can consent, decline, or manage your preferences for advertising cookies at any time. Declining does not affect your ability to use the site — you may simply see non-personalised ads instead.
You can also clear or block cookies through your browser settings at any time. For more detail on how Google uses cookies in advertising, see Google's advertising policies.
The Dans MTG browser extension itself does not use cookies. It stores your login session and settings locally in your browser's extension storage, which is never shared with third parties.
You can request deletion of your account and all associated data at any time. Upon deletion we will remove your user record, collection data, and credit transaction history within 30 days.
Dans MTG is not directed at children under 13. We do not knowingly collect personal information from children under 13.
We may update this policy as the service evolves. Changes will be posted here with an updated date. Continued use after changes constitutes acceptance.
For privacy questions or data deletion requests, contact us through the Dans MTG website or the project's GitHub repository.