CoinCheckerApp tests coin identifier apps for people sorting through jars, collections, and inheritances who want a quick, honest filter: which coins deserve expert attention and which are pocket change. We score apps on whether they tell you what to do next.
Who We Are
Three years ago, one of us inherited a box of coins from a relative — maybe fifty mixed pieces, dates from the 1880s to the 1990s, no organization. Instead of taking them all to a dealer (and losing money on low-value stuff sorted in), we wanted a faster way to triage: spend the expert time and money on the coins that actually warranted it. That's when we started testing coin identifier apps in earnest. What we found was that most apps are built for hobbyists who already know coins, not for regular people who just need a yes/no on 'is this worth my time.' We started this site to fix that gap.
Our job is to test identifier apps as triage tools, not as sources of final appraisals. An app that confidently misidentifies a common date as a rare variety is useless to you — worse than useless. An app that admits uncertainty but points you toward the right coin series, grade estimate, and a decision (send to a grader or sell) is exactly what you need. We score apps on their ability to tell you what to do next: keep digging, grade it, or move on.
Methodology
We test each coin identifier app against the same test set of thirty-two coins, accumulated over two years of collecting and inheritance sorting. The set includes Lincoln wheat cents (1930s–1950s), Mercury dimes (common and key dates), Washington quarters (pre-1965 silver and modern), Morgan dollars (a date run from 1890–1921), Indian Head pennies, Buffalo nickels, Roosevelt dimes, and Standing Liberty quarters. We test each app using real photos taken with standard phone lighting, and we re-test quarterly or whenever a major app update is released.
For each coin, we log: whether the app identified the series correctly; the accuracy of the date; whether it flagged the strike type or mint mark; the estimated grade range it provided; and, critically, whether it gave you a clear decision point (grading recommended, worth retail, or skip). We measure time investment at approximately sixty hours per app across four months of real-world sorting sessions — the kind of work you'd actually do if you inherited a collection.
Our Standards
We believe a coin identifier app's job is to tell you whether to keep investigating a coin or move on. That means the app must get the basics right — series, date, mint mark — but also show you the decision tree. If an app says 'Lincoln cent, 1952-D, Grade VG-8, estimated value $8–12,' that's useful. If it says 'Morgan dollar, possible 1896' without ruling out the other ten years in a decade, it's not; you need clarity enough to decide whether to spend the thirty dollars on professional grading. We score apps on whether they show realistic grade-to-value ranges, flag coins that might benefit from authentication, and honestly admit when they can't tell variants apart. An app that admits 'I see a 1943 penny but cannot distinguish wheat-composition from steel-composition from your photo alone' earns more trust than one that guesses. Secondary to accuracy, we look for apps that help you understand the grading economics: is this coin worth more slabbed than raw, or is it a fill piece that doesn't justify the grading fee?
Disclosure
We do not accept paid placement or sponsor apps we haven't tested for at least four weeks; we do not score apps on their database size or variety-count claims, only on triage accuracy against our fixed test set; we do not recommend apps for final appraisal value (all our test apps are screening tools, not replacement for PCGS or professional dealers) and we do not claim expertise in ancient coins, world numismatics, or specialized error varieties beyond the common date and mint-mark scenarios most people encounter in jars and boxes.
Contact
If you're a coin identifier app developer interested in a review, or if you've found a coin type our test set should include, contact us via the form on this site. We also welcome feedback on our scoring methodology.