# CoinOn vs StampRef

The clearest difference is update cadence: CoinOn at weekly against StampRef's every 3 weeks. StampRef's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CoinOn sells 10 in-app purchases, starting at $6.99 per 7 days and StampRef sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CoinOn ships an update weekly, StampRef every 3 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | CoinOn | StampRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/coinon-coin-value-identifier/id6748674188/reviews)** | — |
| Number of ratings | **1.1K** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 140 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Colorbits Limited](https://appshunter.io/developer/1562298682) | [Victor Pham](https://appshunter.io/developer/1882301002) |

## What reviewers say

### CoinOn

[App page](https://appshunter.io/ios/app/coinon-coin-value-identifier/id6748674188)

Instantly identify and value coins by taking a photo. Access a vast database for detailed information, track market prices, and manage your collection. Buy, sell, and connect with other collectors.

**Highlights:** AI-powered coin identification, Coin valuation and grading tools, Access to 270,000+ coin database, Real-time market price tracking, Personal coin collection management, Secure coin buying and selling

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $6.99 | per 7 days |
| Premium Access | $7.99 | per 7 days |
| Premium Access | $7.99 | per 7 days |
| Premium Access | $8.99 | per 7 days |
| Season Pass | $9.99 | per month |
| Premium Access | $9.99 | per 7 days |
| Premium Access | $12.99 | per 7 days |
| Premium Access | $19.99 | per month |
| Premium Access | $49.99 | per year |
| Premium Access | $49.99 | one-time |


### StampRef

[App page](https://appshunter.io/ios/app/stampref-stamp-identifier/id6760886317)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Monthly Premium | $8.99 | per month |
| Yearly Premium | $59.99 | per year |


## Frequently asked questions

### Is CoinOn free?

CoinOn is free to download, with in-app purchases available.

### Is StampRef free?

StampRef is free to download, with in-app purchases available.

### Do CoinOn or StampRef have ads?

Neither CoinOn nor StampRef shows ads.

### Which is updated more often, CoinOn or StampRef?

CoinOn ships an update weekly, and StampRef every 3 weeks. Most recently, CoinOn was updated on November 8, 2026 and StampRef on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*