About OneZeroTwo

OneZeroTwo tells you what a Pokemon card is worth from real sold prices, and what to pay or ask for it. Its next-sale estimate is backtested at about 2 to 3 percent median error on liquid cards. Built and run by one weekend card-show dealer. Updated 2026-09-27.

What it is

OneZeroTwo answers one question first: what is this card worth right now. You type a card name, add the card number if you have it, and you get the value for the grade you care about, the sold comps that number was worked out from, and an honest read on whether the card is moving up, sitting flat, or sliding.

It is not a marketplace. Nothing is for sale here, there is nothing to bid on, and no listing is being pushed at you. It is a pricing and record-keeping tool that sits alongside wherever you already buy and sell.

What you can do with it

Card search and the current value are free for everyone, signed in or not. Free knows and keeps. Plus prices with confidence. Pro runs the table. Daily photo scans and collection and watchlist sizes rise with the plan, the buyer and seller deal modes come with Plus, and the tools marked Pro below can also be opened for 24 hours at a time on the lower plans with a day pass, a limited number of which is included each month. A pass opens only what your plan does not already include. FlipFinder is not part of a day pass; it is metered separately, as a number of runs a month.

Look up a card. Graded values for PSA, CGC and BGS with PSA as the primary grade, plus raw. The sold comps behind the number are shown, so you can look at the tape instead of taking a figure on faith.
Read the trend. A trailing trend, a 3-month projection drawn with an uncertainty band, and a Trend Score that shows its own weighted breakdown rather than hiding inside a black box.
Keep a collection. Add the cards you own, see what the whole portfolio is worth, and get an action read on each one instead of a wall of numbers.
Watch cards you do not own yet. A watchlist, with alerts when something you are tracking moves.
Read a whole set (every account, cut short by plan). Set performance ranks a set by its top 15 PSA 10 cards, calls the set healthy or cooling, and marks which of those cards look mispriced against their own peers. Free sees the top 3 of 15 and is told how many of the rest the model calls undervalued or overvalued; Plus sees all 15; Pro sees all 15 and can have a set refreshed on demand rather than waiting for the cache.
Price a deal at the table (Plus, or a day pass). Buyer and Seller deal modes take the same value and say what to offer and what to ask, with the spread and the reasoning shown. The numbers do not change between modes; only what is being asked of them does.
Weigh up a trade (Pro, or a day pass). Trade Mode puts both sides of a proposed swap on the same scale and says who is ahead and by how much.
Keep a sales ledger (every account). Record what you paid and what you sold for, with no per-plan cap on rows, and read them back whenever you want. Exporting the year to a spreadsheet for tax time is the Pro part.
Scan a slab. Point a photo at a graded card label and the scanner reads the label text, then hands you a link to check the certificate on the grading company's own site. Every plan can scan; the daily allowance grows with the plan.

Who makes it

One person: a working card dealer who runs a table at weekend shows. Every feature here exists because a real table needed it. Pricing a card while somebody stands in front of you waiting. Valuing a pile of trade bait without doing arithmetic in your head across ten cards. Knowing, at tax time, what you actually paid for the things you sold that year. Nothing was built because it demos well.

The honesty stance

Three rules the whole app is built around, and they are enforced in code, not just in intent.

A price is never invented. If a source has no data for a card, the app says it has no data. It does not fill the gap with a plausible looking number, and it does not quietly substitute a different card's price.
Anything estimated is labeled as an estimate. The trend, the projection and the Trend Score are heuristics. Where an accuracy figure exists it comes from a backtest you can rerun, and the two figures that exist are never mixed up with each other.
Caveats sit next to the number, not in a footnote. PriceCharting's graded history is mostly PSA, so when CGC or BGS data is thin the app shows the PSA figure as a proxy and says so on the spot. A card with too few recent sales is marked illiquid and its confidence is forced down.

What it does not do

It does not give financial or investment advice. Cards are not a savings account.
It does not store card photos. A scanned photo is processed in memory and dropped, never written to disk or to the database.
It does not sell or resell your data, and there are no analytics or advertising trackers on the site.
It does not report eBay sold prices. The eBay panel shows active listings, which are asking prices, and those are kept out of the sold-comp analysis on purpose.

Who wrote this

Written by a working weekend card-show dealer. Everything here is what we do at our own table; nothing is written to fill a page.