The coin collection log.
Scan a coin and get honest condition observations — never an invented grade. Build your sets, keep a want list, and walk away with an inventory your insurer can actually use.
Coming soon to iPhoneCondition, described — not graded
Four AI specialists read strike, surfaces, wear, and luster, and tell you what they see, located on the coin — “two rim nicks at 4 o’clock,” “luster breaks across the cheek.” No Sheldon numbers, no letter grades, and every read is clearly labeled AI. You conclude, or a grading service does.
Sets that close themselves
Start a series and every scan checks against your open slots. Fill 1924-D with one tap, see completion at a glance, and keep a want list of what you’re still hunting.
An inventory built for insurance
Export your collection as a clean PDF or CSV — photos, identification, condition, acquisition details, and your own declared values. Generated on your device, ready for a policy schedule or an estate file.
Private by default
No accounts, no ads, no tracking. Your collection lives on your phone. The only thing that ever leaves it is a photo you chose to scan.
Made for the box you inherited
A collection lands in your lap and the questions start: what is all this, what shape is it in, what does the estate need on paper? Mintmark is built for that afternoon — scan through the box, let entries build themselves, and end the day with a documented inventory instead of a bigger mystery.