Backmark · Antique Identifier

2026Reference

new

Point the camera at an old object and learn what it is, what it is probably worth, and how sure the app is. Values come as ranges with their basis, and the app says so when an item deserves a professional appraisal.

Camera framing a gold pocket watch
May be valuable: get it appraised before you sell
Collection of scanned antiques
SwiftUISwiftDataFirebase AI LogicApp CheckRevenueCat
App Store

Problem

The antique apps already on the App Store have one complaint in common: a confident answer and a precise price, both wrong. Before writing any code I tested the vision model on labelled museum photos. It named the maker correctly 9 times out of 10 when a mark was visible, and 4 out of 7 without one. The wrong answers came with 85 to 95 percent confidence.

Solution

So Backmark never shows a percentage. Every result says Strong match, Possible match or Not sure yet, and why. A Strong match needs the maker's mark in the photo to spell the maker, and the mark is read twice in parallel; both readings have to agree. Values are ranges with the basis written under them, in the person's own currency. When the answer is uncertain and the item could be valuable, the app says that instead of inventing a number, and shows the other possibilities side by side.

Outcome

One photo per scan, a collection with folders that stays on the phone, no account and no server of my own: the model is called through Firebase AI Logic with App Check, so no API key ships in the app. Three free scans, then weekly, yearly or lifetime, with a paywall that has no fake countdown and no invented social proof. Version 1.0 went live on 24 September 2026, and 1.0.1 added Turkish, regional currencies and iOS 18 support two days later.