Quick answer
Coin value apps are usually better at naming a coin than pricing it. A photo can match a design, but value depends on grade, exact date and variety, and on sold prices. On MyCoinage, one grade of the 2023 Atlantic Salmon 50p has sold for anything from £10.80 to £156.70, so a single app figure can mislead.
Key facts
| Question | Short answer |
|---|---|
| What photo apps do well | Match a clear photo to a coin type in a database |
| What they cannot see reliably | Wear, cleaning, small varieties, and sometimes the date |
| Where the value figure comes from | Depends on the app; the listing read for this post does not say whether prices are sold or asking |
| Is CoinSnap free? | Free to download with in-app purchases, per the UK App Store listing (8 October 2026) |
| In-app purchases listed | "Coin Identifier Premium" at £3.99, £6.99, £9.99, £24.99 and £29.99 |
| Accuracy claimed by the developer | "99% recognition accuracy" (identification, not value) |
| Best free check | Identify the coin, grade it honestly, then read sold prices |
How photo coin apps estimate value
A photo identification app does two separate jobs. First it compares your picture with images in its database and returns the closest match. Then it looks up a price for that match and shows it to you.
The first job is pattern matching. The second is a database lookup, and its quality depends entirely on where the prices came from and how recently they were updated.
Developers describe the process in similar terms. The App Store listing for CoinSnap, published by Next Vision Limited, says users can "instantly identify coins from around the globe with a quick photo or upload" and "check rarity levels and access up-to-date market prices". It claims "99% recognition accuracy" across "300,000+ coin types" (a second passage in the same listing says "over 240,000").
Notice what that claim covers. It is a figure for recognising the coin type. The listing does not give an accuracy figure for values, and it does not say whether its market prices are completed sales or asking prices, or which country's market they reflect. Those are the questions to ask of any valuation tool.
Where value estimates go wrong on UK coins
Condition
Grade moves price more than anything else, and a phone photo is a poor way to grade. Lighting hides hairlines, and a cleaned coin can look brighter than an untouched one.
Sold prices show how wide the spread is. MyCoinage tracks 364 verified sales of the 2009 Kew Gardens 50p, with the latest sold prices by grade running from £85 to £290 (late 2026). One number cannot describe that.
Date and variety
Many UK coins share a design across dates with very different mintages. The A to Z 10p coins are the clearest case. Royal Mint figures show 220,000 of each letter dated 2018, but only 63,000 each of the W, Y and Z coins dated 2019.
An app that matches the design and ignores the date will treat those as the same coin. The same goes for portrait changes within a year, and for circulation coins versus the Brilliant Uncirculated or proof versions of the same design.
Sold prices versus listed prices
An asking price is a seller's hope. A sold price is what a buyer paid. The gap between them is the subject of the MyCoinage guide to eBay sold listings, and it is widest on common coins listed at fantasy prices.
Even sold data needs care. On MyCoinage, the VF row for the 2023 Atlantic Salmon 50p shows 280 sales ranging from £10.80 to £156.70, with a volume-weighted average for the coin of £59.09. A tool that shows the top of a range as "the value" is technically quoting a real sale and still misleading you.
Claimed errors
Photo matching finds the nearest catalogue entry. It is not built to confirm a mint error, which needs weight, measurement and comparison with documented examples. Treat any "rare error" result as a prompt to check the UK coin errors list, not as a valuation.
Is CoinSnap free, and what does it cost?
The UK App Store listing shows CoinSnap as free to download with in-app purchases. On 8 October 2026 it listed ten in-app purchases, all named "Coin Identifier Premium", at £3.99, £6.99, £9.99, £24.99 and £29.99.
The listing describes "CoinSnap Premium (Yearly with Trial)" as a one-year subscription with a 7 day trial. It states that the subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period.
The listing does not say which price applies to which billing period, or which features stay free. The app shows the exact price before you confirm, so read that screen. Store prices change, so check the listing on the day.
| What the listing says | Detail (UK App Store, 8 October 2026) |
|---|---|
| Download price | Free |
| In-app purchases | Yes, ten listed, £3.99 to £29.99 |
| Subscription named | CoinSnap Premium (Yearly with Trial), 1 year with a 7 day trial |
| Renewal | Automatic unless cancelled at least 24 hours before the period ends |
| User rating shown | 4.7 out of 5 from about 12,000 ratings |
Are coin scanning apps legit?
The well-known ones are real products from named developers, sold through the official app stores with published subscription terms. That makes them legitimate software. It does not make every value they show reliable.
Two practical points follow. A free trial that converts to a yearly plan is normal app-store practice, so set a reminder if you only want the trial. And a store rating reflects how users feel about the app overall, which is not the same as a test of its valuations against sold prices.
No app was tested for this post, and nothing here is a verdict on any one product. The fair question for any of them is the same: where do the prices come from?
A four-step manual check that takes five minutes
- Identify the coin exactly. Read the denomination, date and design, and note the portrait. The MyCoinage UK coin identifier is a guided five-step check (portrait, denomination, year, metal, diameter) that leads to the catalogue entry.
- Check the date and variety against mintage figures. For circulation coins, the Royal Mint publishes figures for each design and date.
- Grade it honestly. Assume a coin from change is circulated, and compare it with photos of graded examples.
- Read sold prices for that grade. The coin value checker guide explains how, and what to ignore.
If an app's figure lands inside the sold range for your grade, fine. If it sits well above, trust the sales.
How MyCoinage fits in
MyCoinage is a web app that runs in any phone browser. It is a catalogue of UK coins with sold prices by grade and a collection tracker, and it is free to start. Its published methodology says prices come from completed sales and that asking prices are not used.
It has limits, and they are worth stating. The identifier is a guided lookup, not photo recognition. Prices are tied to a stated grade, so they are only as good as your grading. Some coins have few or no tracked sales, in which case the page shows no value. Comparisons with other catalogues are on the Numista and Coin Hunter pages.
If you have a coin from your change that turns out to be worth keeping, you can log it with Change Hunter and follow its sold prices over time.
FAQ
Are coin value apps accurate?
They are more reliable at identifying a coin type than at valuing it. Value depends on grade, exact date, variety and real sold prices, none of which a single photo settles. Use an app's figure as a starting point and confirm it against sold prices for your coin's grade.
Is CoinSnap free?
CoinSnap is free to download, according to its UK App Store listing on 8 October 2026, and offers in-app purchases named "Coin Identifier Premium" from £3.99 to £29.99. The listing describes a yearly premium subscription with a 7 day trial that renews automatically unless cancelled.
Are coin scanning apps legit?
The main coin scanning apps are genuine products from named developers on the official app stores, with published subscription terms. Legitimate is not the same as accurate, though. Check where an app's prices come from and read the subscription screen before starting a trial.
Are CoinSnap values accurate?
That cannot be answered from the store listing. The developer claims 99% recognition accuracy for identifying coins, but the listing gives no accuracy figure for values and does not say whether prices are sold or asking. Compare any value it shows with sold prices for your coin's grade.
Do any of the coin apps actually work?
For identification, a clear photo of a common modern coin is the easy case for image matching. For value, any tool only works as well as its price data. Whichever app you use, confirm the exact date and variety yourself and check sold prices before you buy or sell.
What is the best way to check a UK coin's value for free?
Identify the coin exactly, grade it honestly, then look at sold prices for that grade. A sold-price catalogue such as MyCoinage or the completed listings filter on a marketplace both show what buyers paid, which is the figure that matters.