01 / CARD REVIEW
How to Scan Trading Cards on iPhone
Photograph trading cards with less glare, verify physical corners, and correct perspective while preserving your original image.
Read guideTrading card review guides
Practical guidance from the CardGrader developer for a clearer, more careful card review.
02 / CARD REVIEW
How to Measure Trading Card Centering
Understand left/right and top/bottom centering ratios, printed-border guides, and the limits of unofficial card grading comparisons.
Read guide03 / CARD REVIEW
Trading Card Corner and Edge Inspection Checklist
A practical manual checklist for checking trading card corners and edges, recording wear, and understanding photo-based inspection limits.
Read guideWritten by Dyllon Mahan, developer of CardGrader. These guides describe the app workflow and its limits; they are not professional grading standards.