Card Comp — Privacy Policy

Effective date: October 6, 2026

Card Comp ("we", "us") is a pricing tool for trading-card vendors and collectors, available at www.cardcomp.app, at app.cardcomp.app, and through our iOS and Android apps. This policy describes what information we collect, who receives it, how long we keep it, and how to delete it.

Information we collect

• Account information. Anyone can create an account by signing in with Apple, with Google, or with an email address and password. We receive your email address and, where the sign-in provider shares it, your name. With Sign in with Apple you may choose to hide your email, in which case we receive an Apple relay address instead. With Google we also receive your profile photo. You may optionally add a phone number and a business name.
• Card records. When you scan or look up a graded card or a sealed product we record the lookup — the grader, certificate number or barcode, the card or product identified, and its estimated value at the time — against your account.
• Collections, lists, and trades. The collections, buy and sell lists, and trades you build, including the prices and offer percentages you set.
• Payment handles and deal records. If you use the payment features, the payment handles you enter (for example a Venmo, PayPal, or Cash App username, or the email or phone number you use with Zelle), the records of the deals and payments you log, and, if you enter them on a payment, the name, contact details, and payment handle of the person you dealt with. Only enter details the other person is happy for you to record. Card Comp never processes, holds, or transmits money, and never receives your bank or card details.
• Camera. The camera is used to read graded-card labels and sealed-product barcodes. Text recognition and barcode reading run on your device; camera frames and photos are not uploaded, stored, or shared. Only the details read from the label or barcode (such as the grader, certificate number, and card name) are sent to our servers to identify and value the item. The web version has no camera access.

We do not collect your location, contacts, or browsing history, and the apps contain no advertising, analytics, or crash-reporting SDKs.

How we use it

• To operate the service: authenticate you, identify and value cards, show you your own scan history, collections, lists, trades, and price history, and apply your plan's limits.
• To administer accounts and respond to your requests.
• To build anonymous market price history: each valuation adds a price point for that card (card identity, price, date — nothing about who scanned it), which is how the price charts are drawn.

Who receives information

We do not sell your personal information or use it for advertising. We use the following service providers to run Card Comp:

Sealed-product prices come from public TCGplayer market data published by tcgcsv.com. We download that data; nothing about you is sent to it. Opening a payment link hands off to the payment app you chose (for example Venmo), under that app's own privacy policy. We may also disclose information when required by law.

Data access and isolation

Your scan history, collections, lists, trades, and payment records are visible only to your account and to Card Comp administrators. Other users cannot see your data, except what you choose to share (for example an exported list).

Data retention and deletion

• While your account is active, we keep your account information and the records you create so the service can show them to you.
• Delete your account in the app at Settings → Delete account, or email admin@cardcomp.app from the address on your account. Full details are on our account deletion page.
• Deleted immediately from our live database: your sign-in account, profile (name, email, phone, business name, profile photo), scan history, lists, collections, trades, payment handles, payment and deal records (including any names, contact details, and payment handles of the people you dealt with), exports, and any image reports you made.
• Retained: anonymous market price points — a card, a price, a source, and a date — are kept indefinitely, because they make up every user's price charts. They never recorded who scanned the card, so they cannot be linked back to you.
• Retained: certificate lookups — a grading company's certificate number and the card it identifies, as the grading company reports it — are kept as shared reference data, so the next scan of the same slab is identified without asking the grading company again. They hold no account, user, or scan reference and are not deleted with an account. A certificate number is printed on the slab and moves with the card from owner to owner.
• Earlier app versions. Before October 2026, deleting an account kept card records with the link to the account removed, and the delete confirmation in app versions up to 1.4.0 still describes it that way. Deleting an account now deletes those records as listed above, whichever app version you use.
• Backups and logs: copies in our providers' routine database backups and operational logs expire on their normal schedule, no later than 30 days after deletion.

Children

Card Comp is intended for adults (18+) and is not directed to children. We do not knowingly collect information from anyone under 18.

Your choices

You can export your lists as CSV and delete your account at any time from the app. To ask what we hold about you, to correct it, or for any other request, email us.

Contact

Questions or requests: admin@cardcomp.app

We may update this policy as the product evolves; the effective date above reflects the latest revision. See also our Terms of Service.