MintQuest: AI Card Grader
In-app purchases
Everyone
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About this app
Meet Professor Hoot, the monocled owl appraiser of the card world. MintQuest turns your phone into a pixel-art pre-grading lab so you can estimate your card's condition BEFORE paying for professional grading.
Photograph the front (and back for a fuller read) of any raw trading card and get an AI-estimated grade from 1 to 10 in seconds.
WHAT YOU GET
- Estimated overall grade (1-10)
- Four subgrades: Centering, Corners, Edges, Surface
- Defect list: whitening, dents, scratches, print lines and more
- Card identification (name, set and number when recognizable)
- "Worth grading?" verdict so you can submit smarter
WORKS WITH YOUR COLLECTION
Pokémon, Magic: The Gathering, Yu-Gi-Oh!, One Piece and sports cards. Find gem mint candidates and skip cards that are not ready.
MANUAL CENTERING TOOL
Drag lines over your photo to measure left/right and top/bottom centering ratios. Works offline.
BINDER
Every scan is saved in your Binder, stored on your device only.
PRIVACY FIRST
- No account or login
- No ads, no tracking, no analytics SDKs
- Photos are used only to produce your analysis and are not stored on our server
- Consent is requested before any photo is sent to the AI and can be withdrawn in Settings
TIPS FOR BEST RESULTS
Bright, even light, a plain surface, straight-on shot, all four corners visible. Remove sleeves and top loaders to cut glare.
RETRO RPG STYLE
Classic 8-bit pixel-art adventure feel with Professor Hoot guiding every scan.
SUBSCRIPTION
MintQuest requires a subscription to scan cards.
- Weekly: $4.99 per week, with a 3-day free trial
- Yearly: $29.99 per year
Payment is charged to your Google Play account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Google Play > Payments & subscriptions > Subscriptions. Any unused portion of a free trial is forfeited when you purchase a subscription. Prices may vary by region.
Terms: https://mintquest-api-738316371459.us-central1.run.app/terms
Privacy Policy: https://mintquest-api-738316371459.us-central1.run.app/privacy
IMPORTANT
Grades are AI-generated estimates only. They are not official, are not guaranteed, and may differ from any professional grading service. MintQuest is not affiliated with, endorsed by, or sponsored by any grading company, The Pokémon Company, Nintendo, Wizards of the Coast, Konami, Bandai, or any sports league. All trademarks belong to their respective owners.
Support: ggprgrkjh2@gmail.com
Photograph the front (and back for a fuller read) of any raw trading card and get an AI-estimated grade from 1 to 10 in seconds.
WHAT YOU GET
- Estimated overall grade (1-10)
- Four subgrades: Centering, Corners, Edges, Surface
- Defect list: whitening, dents, scratches, print lines and more
- Card identification (name, set and number when recognizable)
- "Worth grading?" verdict so you can submit smarter
WORKS WITH YOUR COLLECTION
Pokémon, Magic: The Gathering, Yu-Gi-Oh!, One Piece and sports cards. Find gem mint candidates and skip cards that are not ready.
MANUAL CENTERING TOOL
Drag lines over your photo to measure left/right and top/bottom centering ratios. Works offline.
BINDER
Every scan is saved in your Binder, stored on your device only.
PRIVACY FIRST
- No account or login
- No ads, no tracking, no analytics SDKs
- Photos are used only to produce your analysis and are not stored on our server
- Consent is requested before any photo is sent to the AI and can be withdrawn in Settings
TIPS FOR BEST RESULTS
Bright, even light, a plain surface, straight-on shot, all four corners visible. Remove sleeves and top loaders to cut glare.
RETRO RPG STYLE
Classic 8-bit pixel-art adventure feel with Professor Hoot guiding every scan.
SUBSCRIPTION
MintQuest requires a subscription to scan cards.
- Weekly: $4.99 per week, with a 3-day free trial
- Yearly: $29.99 per year
Payment is charged to your Google Play account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Google Play > Payments & subscriptions > Subscriptions. Any unused portion of a free trial is forfeited when you purchase a subscription. Prices may vary by region.
Terms: https://mintquest-api-738316371459.us-central1.run.app/terms
Privacy Policy: https://mintquest-api-738316371459.us-central1.run.app/privacy
IMPORTANT
Grades are AI-generated estimates only. They are not official, are not guaranteed, and may differ from any professional grading service. MintQuest is not affiliated with, endorsed by, or sponsored by any grading company, The Pokémon Company, Nintendo, Wizards of the Coast, Konami, Bandai, or any sports league. All trademarks belong to their respective owners.
Support: ggprgrkjh2@gmail.com
Pre-grade sports cards & TCG cards with AI: centering, corners, edges, surface
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesFinancial info, Photos and videos, and Device or other IDs
- Data is encrypted in transit
- You can request that data be deleted
What’s new
Welcome to MintQuest 1.0! Professor Hoot is ready to appraise your cards. Scan front and back for an estimated 1-10 grade, subgrades, defects and a worth-grading verdict. Includes the manual centering tool and your local Binder.
App support
About the developer
김준형
ggprgrkjh2@gmail.com
대학10길 41-8
101호
관악구, 서울특별시 08819
South Korea
