Free on macOS 13 and later
The collection app for Mac
Classifier catalogs any collection on your Mac — coins, trading cards, vinyl, stamps, books, figures, or whatever you happen to collect — and keeps it in sync with your iPhone and iPad.
Built for cataloging sessions at a desk
Getting a collection into an app is the hard part, and it is the part a Mac is best at. Sitting down with a box of coins or a shelf of records and working through it on a full-size screen and keyboard beats thumbing through entries on a phone. Classifier runs on macOS 13 and later, so the cataloging session happens where it is comfortable and the results follow you everywhere else.
The same collection on every device
Classifier uses iCloud sync, so a Mac is not a separate copy of your collection — it is the same collection. Add items on your Mac and they appear on your iPhone and iPad without exports, imports, or a separate account to set up. Catalog at home, then check the wishlist from your pocket at a show.
Tags and filters that match how you sort
Rather than locking you into fields somebody else picked, Classifier lets you build your own tags — condition, era, origin, value, or whatever actually matters for what you collect — and then filter down to exactly the items you want. On a Mac screen, filtering a large collection is genuinely quick.
See what your collection adds up to
Classifier turns your items into charts and statistics: totals by category, estimated value over time, and the trends that are impossible to see when your collection lives in a spreadsheet or a shoebox.
Also on iPhone and iPad
One free download covers every platform. See Classifier for iPhone or read more about what Classifier does.