# Arithmetic HD vs Coin Identifier

The clearest difference is price: Coin Identifier at Free against Arithmetic HD's $1.99. Coin Identifier also leads on update cadence (every 6 weeks vs every 9 months). Arithmetic HD's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On ads there is nothing between them.

Coin Identifier is free to download; Arithmetic HD costs $1.99 up front. Coin Identifier sells 3 in-app purchases, starting at $3.99 per 7 days. Arithmetic HD asks for nothing beyond the download.

Arithmetic HD ships an update every 9 months, Coin Identifier every 6 weeks. The most recent releases landed on September 13, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Arithmetic HD | Coin Identifier |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/coin-identifier-coid/id6738034105/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 24 MB |
| Requires iOS | **12.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kostakov Maxim](https://appshunter.io/developer/524964352) | [Ramkumar Vellaisamy](https://appshunter.io/developer/1706335914) |

## What reviewers say

### Arithmetic HD

[App page](https://appshunter.io/ios/app/arithmetic-hd/id686967632)

**Features:** macOS Compatibility

**In-app purchases:** none


### Coin Identifier

[App page](https://appshunter.io/ios/app/coin-identifier-coid/id6738034105)

Identify coins from around the world instantly with a photo. Get detailed information on origin, year, rarity, and historical facts. Organize your collection and explore coin histories with this user-friendly app.

**Highlights:** Instant coin identification via photo, Detailed coin information, Collection organization, Explore coin histories and rarity, User-friendly design

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Pro Week | $3.99 | per 7 days |
| Coin Pro Month | $9.99 | per month |
| Coin Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Arithmetic HD free?

Arithmetic HD costs $1.99, with no in-app purchases.

### Is Coin Identifier free?

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

### Do Arithmetic HD or Coin Identifier have ads?

Neither Arithmetic HD nor Coin Identifier shows ads.

### Which is updated more often, Arithmetic HD or Coin Identifier?

Arithmetic HD ships an update every 9 months, and Coin Identifier every 6 weeks. Most recently, Arithmetic HD was updated on September 13, 2026 and Coin Identifier on September 17, 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.*