Contendr: Card Marketplace
AI-Graded Raw Card Market
About
This app is a marketplace for raw, ungraded trading cards. It uses AI to grade cards before listing, providing detailed reports and defect maps. Buy and sell cards with built-in protection and escrow services.
What's New in Contendr
1.1.7
October 25, 2026
Bug fixes and minor improvements!
Subscriptions & In-App Purchases
Contendr Pro
Unlimited card grading, billed monthly.
Developer apps
FAQ
What is Contendr?
Contendr is a marketplace specifically for raw, ungraded trading cards. It utilizes AI grading to assess cards before they are listed, providing detailed reports and defect maps to buyers.
How does the AI grading work in Contendr?
You photograph the front and back of your card, and Contendr's AI measures centering, corners, edges, and surface. It provides a grade with a confidence score and a Defect Map showing specific wear.
What types of cards are available on Contendr?
The platform features over 190,000 cards across popular TCGs and sports, including Pokémon (English and Japanese), Magic: The Gathering, Yu-Gi-Oh!, One Piece, and various sports cards.
How does Contendr protect buyers?
Payments are held in escrow until the card is delivered. Buyers have a window after delivery to check the card against its report and photos, with the option to open a claim if it's not as described.
What are the fees for selling on Contendr?
There is an 8% final value fee on sales, which covers grading, escrow, and buyer protection. Grading a card to list it is free.
Does Contendr have ads?
No, Contendr does not contain advertisements. The app is free to browse and watch items, with fees only applied to completed sales.
What is Contendr Pro?
Contendr Pro is a monthly subscription service for $19.99 that offers unlimited AI grading for cards you wish to keep but not list. This subscription auto-renews unless canceled at least 24 hours before the period ends.
Is Contendr's AI grade the same as professional grading?
No, Contendr's AI grade is a machine-generated estimate and is not a professional grade. It may not match the grades provided by companies like PSA, BGS, or SGC.
