Privacy Policy

The short version

Arch has no user accounts, collects no names, emails, or payment details, and never sells data. We keep a small amount of anonymous usage data to understand how the site is used.

Cookies we set

• Preferences - your theme, display currency, and watchlist live in cookies on your device. Your watchlist never leaves your browser except as anonymous card identifiers.
• Anonymous analytics identifiers - two random identifiers (visitor and session) that contain no personal information and cannot be linked to you.

Analytics we collect

We record anonymous events such as page views, searches, and card views, together with coarse context (country, device type, referring site) derived from the request. We do not store IP addresses. We also use Vercel Web Analytics, which is cookie-free and anonymous.

Where data lives

The site is hosted on Vercel; anonymous analytics events are stored in a Supabase database. Card and price data shown on Arch is fetched server-side from licensed market-data providers and never involves your browser talking to those providers directly.

Outbound links

Listings link to third-party marketplaces such as eBay and TCGplayer. Their sites have their own privacy policies; we receive no personal data back from them about you.

Data removal & contact

Clearing your browser cookies removes every identifier Arch knows you by. For any privacy question, contact support@toarch.co.