Play Coinoscope: Identify coin by image on PC and Mac

About the Game

Coinoscope is a visual identification tool built specifically for coin collectors and numismatists who want a fast, reliable way to recognize and value coins from around the world. At its heart, the application uses artificial intelligence to compare a photograph you take against a large database of known coins, then returns a ranked list of visually similar results so you can pinpoint exactly what you are holding.
Getting started is straightforward. Open the app, center a coin within the camera frame, and tap the screen to lock focus before taking the shot. A zoom slider lets you adjust the framing so the coin fills as much of the image as possible, which helps the AI pick up fine surface details. Lighting and angle matter too. If the first search does not return satisfying matches, adjusting the light source or tilting the camera slightly can reveal edge details and relief patterns that improve accuracy significantly.
Once the search completes, the results screen presents a scrollable gallery of candidate coins, each showing a thumbnail image alongside a text description. From here you have several options:
Tap any image or description to open a web browser page with deeper information about that specific coin.
Use the Estimate Value feature to get an approximate market value based on parameters you enter, including the coin's country of origin, nominal denomination, currency type, and year of issue.
Add an optional personal note and one or more hashtag labels before saving the result to your collection.
Long-press any description in the list to copy its text directly into the note field, saving you from typing.
Press Find Similar on any saved result to launch a new search based on that coin's profile.
The collection management side of Coinoscope is equally thoughtful. Your saved searches are accessible through a dedicated screen that offers two browsing modes. The All tab shows every saved coin in chronological order, giving you a timeline of your searches. The Tagged tab filters results by the hashtags you assigned, making it simple to group coins by region, era, material, or any other category that fits your collecting style. Tapping a saved entry opens it for editing, while a long-press brings up the option to remove it entirely.
Privacy is handled transparently within the app. Coin images are uploaded to the Coinoscope server to perform the similarity search and may be used to refine the underlying search engine over time. The developers commit to not sharing uploaded images with any outside parties, keeping your collection research private.
For collectors who prefer working at a desk rather than hunching over a phone, running Coinoscope through MuMuPlayer on a PC offers a comfortable alternative. The larger monitor makes comparing coin images far less straining, descriptions are easier to read at full size, and managing a growing tagged collection becomes a more organized process with a mouse and keyboard at hand. High-resolution images fed through MuMuPlayer can also give the AI engine better input material, potentially surfacing more accurate matches for worn or unusual pieces. Whether you are cataloging a newly inherited collection or hunting for that one elusive variety to complete a set, Coinoscope combined with MuMuPlayer provides a capable and convenient desktop workflow for serious coin research.