Written by Jeremy Unruh, Founder & CEO of RarityFinder.
PriceCharting is a reference library. RarityFinder is a search party. PriceCharting has one of the broadest historical price catalogues in collectibles — video games, cards, comics, coins and more. It is the reference you check when you already know what you are holding. RarityFinder does the opposite job: it goes out and finds which live eBay listings are priced below what the market pays, and tells you while you can still buy them.
Key takeaways
PriceCharting is a lookup database: you supply the item, it supplies the price history.
RarityFinder is a discovery engine: it supplies the items, already scored against real sold comps, ranked by how underpriced they are.
Alert speed is the first differentiator — RarityFinder's saved searches run hourly and notify you while a mispriced Buy It Now listing is still live.
Scarcity discovery is the second — strict variant, parallel and grade matching means a rare version is never averaged into a common one's price.
RarityFinder uses PriceCharting data as one of its historical inputs, so this is not an either/or: it is a lookup tool versus a lookup tool plus a scanner.
RarityFinder shows fee-adjusted flip profit per listing; a price database leaves that arithmetic to you.
Which one should you use?
Choose PriceCharting if you mainly need to look up what a specific item is worth across a very broad catalogue.
Choose RarityFinder if you need to be shown which live listings are underpriced right now, without searching for them yourself.
Differentiator 1: alert speed
A price database is only useful once you have found something. That means the slow, manual part of collecting — scanning listings, spotting the one that is priced wrong — stays entirely on you.
And that part is time-critical. A clearly underpriced Buy It Now listing on a sought-after item is usually bought within minutes to hours of going live. By the time you have looked the item up, checked a chart and decided, the listing is often gone.
RarityFinder removes the search step. Each search scores up to 200 live Buy It Now listings in seconds, and Hunter saved searches keep scanning on an automated hourly schedule, emailing you when a new listing clears your score threshold.
Lookup speed and alert speed are different things. A database answers fast once you ask. RarityFinder answers before you ask.
Differentiator 2: scarcity discovery
Broad catalogues have to generalise. A single price line for an item is a reasonable approximation across the whole market — and a poor one for the exact copy in front of you.
Scarcity is where the money is: a first-print variant, a sealed copy, a /99 parallel or a graded example trades in a different market to the common version, and mispriced listings appear precisely when a seller does not realise which one they have.
RarityFinder enforces strict matching on variant, parallel, serial numbering, grade and grading company, requires at least three genuine sold comparables before it will report a market value, and excludes lots, bundles and box-only or manual-only listings so they cannot drag a comp down.
That is what makes the score actionable rather than indicative: it is comparing like with like before it claims anything is underpriced.
Feature comparison: RarityFinder vs PriceCharting
Alert speed (live deals) — RarityFinder: Automated hourly saved-search alerts — notified when a new listing clears your score threshold; PriceCharting: No live deal alerts — a lookup database, queried on demand
Scarcity / rarity discovery — RarityFinder: Strict variant, parallel, serial-number and grade matching; lots and partial items excluded; 3+ sold comps required; PriceCharting: Broad catalogue price points by item and condition; not a live scarcity scanner
Primary job — RarityFinder: Find underpriced live Buy It Now listings to purchase; PriceCharting: Look up what a known item has sold for
Live listing scanning — RarityFinder: Up to 200 live Buy It Now listings scored per search, in seconds; PriceCharting: Not a listing scanner
Sold-comp valuation — RarityFinder: Median of 3+ strictly matched sold comps, applied automatically to every listing; PriceCharting: Core strength — very broad historical price catalogue
Fee-adjusted profit — RarityFinder: Estimated flip profit after marketplace and shipping fees shown per listing; PriceCharting: Not offered — you do the maths
AI grade prediction — RarityFinder: Predicts a likely PSA grade from the listing's existing photos (Hunter plan); PriceCharting: Not offered
Price history depth — RarityFinder: Uses sold comps plus PriceCharting historical data as an input to scoring; PriceCharting: Core strength — long-running catalogue across many categories
Categories covered — RarityFinder: Trading cards, sports cards, graded coins, watches, comics, LEGO, video games, vintage memorabilia; PriceCharting: Very broad — games, cards, comics, coins and more
Starting price — RarityFinder: Free tier (5 searches/day); paid plans from $4/month; PriceCharting: Free web lookups with paid tiers for data access
Where PriceCharting wins
Catalogue breadth. PriceCharting's coverage across video games, consoles, cards, comics and coins is extremely wide — if you want a price on an obscure item, it is often the first place to find one.
Condition-tiered reference pricing. Loose, complete-in-box and sealed price points are a clean, fast reference that a per-listing score does not replace.
Free, instant lookups. For a one-off "what is this worth?" question, a database lookup is the shortest path — no account, no search budget.
How to use both together
Use PriceCharting when you already have the item in hand and just need a reference price across conditions.
Use RarityFinder when you want to be shown listings that are priced below that reference — with the comps, the variant match and the fee-adjusted margin already worked out.
RarityFinder already pulls PriceCharting historical data into its scoring, so the two are complementary inputs rather than competing answers.
Worked example
A sealed game with a broad reference price around $240 appears as a Buy It Now listing at $150.
With a lookup tool, that only helps if you happened to see the listing and thought to check. Most people do not see it at all.
RarityFinder scores that listing against strictly matched sold comps, subtracts marketplace and shipping fees, shows the estimated margin, and — with a saved search — emails you on its next hourly pass.
Same item, same margin. The difference is whether it reached you while it was still for sale.
Frequently asked questions
Does PriceCharting show live underpriced listings?
No. PriceCharting is a price reference database: you look up an item and it shows historical price points by condition. It does not scan live eBay listings or tell you which ones are underpriced. RarityFinder does exactly that, scoring live Buy It Now listings against sold comps and ranking them by how far below market they are.
Is RarityFinder better than PriceCharting?
They do different jobs. PriceCharting is the better reference catalogue, with very broad coverage and free instant lookups. RarityFinder is the better sourcing tool, because it finds the listings for you, applies strict variant matching, shows fee-adjusted profit, and alerts you while a deal is still live. RarityFinder also uses PriceCharting data as one of its historical inputs.
Why does RarityFinder need three sold comparables?
A single sale can be an outlier — a bad photo, a rushed auction, a mistyped title. Requiring at least three strictly matched sold comparables before reporting a market value keeps the median honest, so the deals it flags reflect real demand rather than one unusual sale.
How fast are RarityFinder's alerts?
Saved-search alerts run on an automated hourly schedule. When a newly listed Buy It Now item matches your search and clears your score threshold, you get an email and an in-app notification. Because mispriced listings often sell within minutes to hours, that cadence is the difference between seeing a deal and buying it.
Can I use both PriceCharting and RarityFinder?
Yes, and most buyers should. Use PriceCharting for quick reference lookups on items you already hold or have found elsewhere, and RarityFinder to continuously scan the live market and surface the listings that are priced below what comps support.
What does RarityFinder cost?
There is a free tier with 5 searches per day. Scout is $4/month for higher search limits, and Hunter is $9/month, which adds saved-search alerts and AI grade prediction from listing photos.
Source: live and sold eBay Buy It Now listings and PriceCharting historical sales data, retrieved at the time of search.
Page facts
Summary
PriceCharting is a reference library. RarityFinder is a search party. PriceCharting has one of the broadest historical price catalogues in collectibles — video games, cards, comics, coins and more. It is the reference you check when you already know what you are holding. RarityFinder does the opposite job: it goes out and finds which live eBay listings are priced below what the market pays, and tells you while you can still buy them.
Author
Jeremy Unruh, Founder & CEO
Last updated
Publisher
RarityFinder, Erie, Colorado, USA
Sources
Source: live and sold eBay Buy It Now listings and PriceCharting historical sales data, retrieved at the time of search.