It changes hands
Somebody offers a trade across a table, and the piles are not obviously even.
How it works
In short: it compares what you would get for the card as it is with what you would get after grading, once every cost is paid. Four steps, about a minute.
You mail your card to a grading company, such as PSA. An expert checks it and gives it a score from 1 to 10, then seals it in a hard plastic case with the score on the label. That sealed card is called a slab.
A high score can make a card worth far more. A low score can make it worth less than you paid to grade it. That gamble is the whole question this app answers.
Made up numbers, just to show the idea
Say your card sells for $60 as it is. Graded a 10 it might sell for $400, graded an 8 only about $80. Grading one card on its own, with postage both ways, insurance and selling fees, costs about $100.
Sending several cards in one box shares the postage, which is why the box planner can find a send worth making when no single card is.
Your real card is rarely that clear, so the app weighs every grade it could get by how likely each one is, and does the sum for you.
Grading companies change their prices with little warning, so every company's own price page is checked every week, and each price in the app has to match it. The date on the rates only moves when they all do. Rates as of October 23, 2026.
Sold prices are looked up fresh every day, and a saved sale is never used past that.
Start to finish
You get a card, check it closely, mail it to a grader, and it comes back sealed with a score. The app helps with the big question in the middle: is it worth mailing in?
The card shown is this site's own. Nothing here is a real set, a real player or a real grading company's label, because a picture used to sell a product is a different thing from a thumbnail used to identify the card you are pricing.
The reason this exists
We made 48 ordinary cards at random and ran each one through the app, as if you sent them 20 at a time. Only the lit ones would make you more money graded than sold as they are. Most cards are not worth grading, and that is exactly what the app is here to tell you.
Send itRiskyKeep it raw
A worked example
One example card, run through the app line by line: what it sells for now, what grading costs, the grade it needs, and how much extra you would make.
card1962 post war base
sells for$260.00 ungraded
centering56/44, measured
conditioncorners sharp · edges sharp · surface sharp
servicePSA Priority · 20 cards sent together
checking every grade it could get
cost to grade$137.35
needsa PSA 8 or better to make money
odds100% chance it pays off
profit+$707.22 vs selling it as is
Send it
Before you scroll on
Six made up cards. For each one, guess Send it or Keep it raw, then see what the app says and why. The app works every answer out for real, the same way it does for your card.
Grade or not
Chrome era rookie · 1998
Would you send it in to be graded?
If the app says Risky, it counts as Keep it raw here. Only send a card in when the numbers clearly say it will make you money.
Centering means how evenly the picture sits inside the card's borders. It is the one thing a phone can measure for real, so the app does. Take a photo and it finds the edges of the card and the edges of the picture, and compares the borders on each side.
A perfectly centered card is 50/50. To have a shot at a 10, the worse side can be no more than about 55/45. If the app cannot find the edges clearly, it tells you so instead of guessing.
You can skip the photo and just pick how the card looks. Answers from memory are taken down a notch (0.5 of a grade), because most of us think our own cards look better than a grader will.
50/50 means the picture sits dead center. The further off it is, the lower the best grade it can get. Measured on the side that is most off.
Two graders can look at the same card and give it different scores. So the app does not bet on one grade. It works out the chance of each grade from 1 to 10, then adds up what you would make at each one, weighted by how likely it is.
Your card's worst feature sets the limit. Perfect corners and edges do not make up for a scratched surface: graders score it as a scratched card. The app allows at most one point of leeway, and only when everything else is clearly much better.
Some damage puts a hard limit on the grade. A crease, for example, keeps a card low no matter how well centered it is.
The price on a grading company's website is not the whole cost. You also pay to mail the cards in and to get them back (insured, so the more they are worth, the more it costs), plus sleeves and holders to protect them.
Postage is paid per box, not per card. That is why grading one card on its own costs the most per card, and why sending several together can turn a no into a yes. The app shows you how much the number of cards in your box changes the answer.
When you sell the graded card, the selling site takes a fee and you pay to ship it. The app takes that off too, so the number you see is what you would actually keep.
The price of your card at each grade comes from one of three places, and the app always tells you which: a sold price you typed in yourself, real recent sales from our price data provider, or the app's own estimate based on how old the card is.
That estimate is the least certain part, and it is labelled everywhere it is used. When every price is an estimate, the app is extra careful: it only says Send it when the profit is big enough that even a wrong estimate would not lose you money.
If you know what your card really sold for at one grade, type it in. One real price at the grade that decides the answer helps more than anything else, and the app tells you which grade that is.

The trade check prices both sides the same way and shows you the difference. A trade counts as even when the two sides are within 5% or $5 of each other, whichever is bigger. A dollar either way does not matter on a $20 trade, but 5% of a $6,000 trade is $300, which does.
Sometimes it will not pick a side, on purpose. Some prices are real sales and some are the app's estimates. If the estimated part is bigger than the gap between the two sides, that gap might just be the estimate being off, so the app says it cannot call it rather than guess a winner. It checks this before calling anything even, because two piles of guesses can look perfectly even.
A graded card is priced at its grade, from real sales when there are some and from the estimate when there are not. Each card says which.
It is not a grade. No grading company has seen your card, and nothing here decides what one would give it. It is an estimate built from what you told it.
It cannot see your card. Corners, edges and surface come from your answers. Print lines, dents and white edges are things you have to spot and tell it about, and if you describe a card too kindly, the answer will be too kind as well.
It cannot spot a fake. Nothing here checks whether a card is real.
Prices change. Grading prices change, card prices change faster, and an answer is right for today, not forever.
If grading would make you less than $25 extra, the app says it is not worth it, even though it is technically a profit. Your card is gone for weeks or months, and that is worth something too.