Stamp Identifier helps collectors identify old, foreign and unfamiliar postage stamps from a single photo. Take a clear picture of a stamp and the app analyses the visible design, text, denomination, perforations and cancellation to suggest the likely country, issue and date, with printing clues, condition and rarity context and a cautious estimated value range to use as a research starting point. An in-app AI chat lets you ask follow-up questions about a scan, and saved scans build a collection record you can revisit and compare. The app also publishes practical guides on identifying stamps by era and reading dealer prices, from Belgian King Albert I issues to Chinese Qing dragons and Republic junks. A free tier is available on iPhone and Android with free scans included and no account required, and premium features add more scans. The app carries a 4.6 out of 5 rating from 471 ratings. Stamp Identifier suits collectors sorting inherited albums, flea-market finds or unfamiliar foreign issues who want a quick, organised first read before deeper research.