CoinPricingApp tests coin pricing apps for collectors who plan to sell—not collectors who just want to know what their coins are worth on paper. We score apps on whether they show realistic ranges across dealer-to-retail scenarios and honest grading variance, not single false-precise numbers that disappear the moment you walk into a coin shop.
Who We Are
Two of us inherited coin collections in the past three years and learned immediately that the value printed in a price guide bears almost no relationship to what a dealer will offer. A coin the Red Book lists at $45 will not bring $45 at a counter. We spent weeks calling dealers, reading Greysheet quotes, and getting turned down at shops—all while holding apps that confidently told us exact values. That gap between app number and reality sparked this project.
We started testing coin pricing apps because we wanted to know what a collector should expect when selling. Our angle is not academic. It is practical: an app that doesn't prepare you for the dealer conversation—that doesn't explain the difference between retail and wholesale, that doesn't show you a realistic range—is not a useful tool for a seller. That is the lens we bring to every review.
Methodology
We test each pricing app against a fixed set of 34 coins across six series: Lincoln wheat cents (1920–1958), Mercury dimes (1916–1945), Standing Liberty quarters (1916–1930), Morgan dollars (1878–1921), Buffalo nickels (1913–1938), and Indian Head pennies (1859–1909). We spend 40–80 hours per app over 6–8 weeks, entering each coin into the app multiple times (at different grading levels and varieties where applicable), documenting the output, and comparing it against current Greysheet Bid and Ask quotes, as well as recent realized prices from dealer sell-lists and auction archives.
For each coin and grade, we evaluate: (1) whether the app returns a single number or a realistic range; (2) whether the range reflects the typical 70–90% dealer-pay standard (the rule of thumb for retail coin purchases); (3) whether the app discloses the data source and refresh cadence; (4) whether grading variance is acknowledged (does a one-grade difference show meaningful price movement?); (5) per-coin selling economics—does the app help you decide if a $25 coin is worth paying $50 to get graded? We re-test after each major app update and quarterly to track price drift.
Our Standards
A single decimal-precise dollar value for a coin is almost always wrong—especially for a seller. Coin prices exist in ranges. The same 1921 Morgan dollar in MS-63 will fetch different bids depending on strike, luster, toning, and the specific dealer's inventory need. An app that returns '$127.50' is either using stale data or guessing. We score apps on whether they show the real range (typically 20–35% spread from floor to ceiling for most coins in the $20–$200 range), and whether that range accounts for the dealer-pay discount. If an app tells you a coin is worth $80 but doesn't surface that a dealer will likely offer $56–$72, it has failed the seller. We also look for per-coin grading ROI signals—if your coin is worth $15 as-is but could be worth $45 in a slab, a good app tells you that math, so you can decide if the $25–$50 grading cost makes sense. That is the difference between a pricing app and a selling app.
Disclosure
We do not accept payment from app developers to review their products, and we do not publish a review unless we have used the app for at least two weeks and tested it against our full 34-coin set; we do not score an app as accurate if it returns a single number without explanation—a range is the only honest answer for a seller facing a dealer conversation; we do not test rare or specialty coins (ancient coins, world coins, error coins beyond our set), so we don't claim our reviews apply outside the core U.S. circulation and collector series we focus on.
Contact
If you build a coin pricing app and want us to review it, or if you have a coin series you think we should add to our test set, contact us through the form on this site. We read every submission and reply within two weeks.