About ZeroPop
Built by collectors.
Trusted by graders.
ZeroPop is an AI card grading scanner for iOS. We built it because every other grading tool we tried either sent our card photos to a cloud server we didn't trust, or gave us vague guesses instead of actionable sub-grades.
What we do
Every card you scan gets four sub-grades on a 1–10 scale — corners, edges, surface, and centering — using a vision model that runs entirely on your device. No photos leave your phone. On top of those sub-grades we estimate PSA, BGS, and CGC grades with confidence scores, map every defect to the card zone where it lives, detect 20+ variants (1st Edition, Alt Art, Prizm, etc.), and track your collection value over time against live eBay market data.
How we stay honest
Our grading predictions are calibrated against thousands of real PSA, BGS, and CGC submissions we've personally sent in. We publish our methodology, disclose confidence intervals, and ship updates when population reports shift the math. When we're unsure about a prediction, we say so.
Every article on our blog is written by someone who actively collects and grades cards, not a freelance SEO writer with no stake in the outcome. We show our work, include specific card numbers and real sale comps, and update posts when the market moves.
Our team
Ready to grade your cards?
ZeroPop is free to download. Scan any trading card and get instant sub-grades and PSA/BGS/CGC estimates.
Get Free on iOS