Grader
Preview openPhotograph a card on your phone and see its centering, corners, edges and squareness measured. An estimate, never a grade, so you can decide whether grading is worth the fee.
- Pokémon
- Magic: The Gathering
- One Piece
- Disney Lorcana
- Star Wars Unlimited
Chase the hit. Know the odds.
Before you grade, rip or bid, see what the numbers say. Your collection app tracks what you own; Cardonomics helps you decide what to do next.
The grader preview runs on your phone, needs no account, and your photos never leave it.
Grader
PreviewPhone photos in, measured centering, corners and edges out.
Example54/46 · 52/48
Rip or Not
OpenA box’s average value against its price, and the odds of the big pulls.
Example1 in 37 boxes: $500+
Bid Buddy
Free for ChromeYour max for a live auction lot, worked out before the countdown.
ExampleYour max: $42
Advice, not hype
Every number says how much it rests on and when it was measured.
Works alongside the collection app you already use.
Three tools
Grade it, rip it or bid on it.
Three decisions every collector makes, each with a tool that does the maths first and shows its working.
Rip or Not
OpenPick a sealed box and see what it returns on average against what it costs, and how often it holds the cards collectors rip for. Both numbers, side by side and dated, so the fun of the chase is a choice you make with your eyes open.
Bid Buddy
Free for ChromeA Chrome extension for live auctions. It finds the lot’s market price and works out your max from your own rules, and keeps it in view. It advises; you decide, and you place your own bids.
Honest numbers
The friend in the group chat who knows the odds.
Fun to use, straight with you. What we promise about every number on this site:
- How much, and whenEvery figure says how much it rests on and when it was measured, so you can judge it yourself.
- A blank, never a guessWhere we do not have enough to say, we say so. A gap you can see is better than a number you cannot trust.
- The average beside the dreamThe odds of a big pull are shown next to what a box returns on average, never instead of it.
- No casino tricksNo streaks, no countdowns, no confetti for spending. The shine is saved for the chase card.
For collectors
Your collection app tracks what you own. Cardonomics helps you decide what to do next.
Keep using Collectr or whichever app holds your binder. Cardonomics is for the moment before you act.
Your collection app
- Everything you own
- What it is worth today
- Your binders, lists and sets
Cardonomics
- Is this card worth sending to grade?
- Is this box worth opening, or worth more sealed?
- How much should I bid on this lot?
Start with the card in your hand.
The grader preview is free and runs on your phone. Create an account when you want your own dashboard.