# ICD vs ICD 9

The clearest difference is in-app purchases: ICD 9 at none against ICD's 3. ICD 9 also leads on update cadence (every 5 weeks vs every 14 months) and rating (4.3 vs 4.0). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ICD sells 3 in-app purchases, starting at $3.49 per month. ICD 9 asks for nothing beyond the download.

ICD 9 holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: ICD 9 has 22 ratings behind it against 4, so its average is the more settled of the two.

ICD ships an update every 14 months, ICD 9 every 5 weeks. The most recent releases landed on August 26, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | ICD | ICD 9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/icd-10-cm-codes-2022-reference/id415731352/reviews) | **[4.3 (22 ratings)](https://appshunter.io/ios/app/icd-9-10/id821550817/reviews)** |
| Number of ratings | 4 | **22** |
| Positive reviews | — | 92.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 weeks** |
| Monetization | Freemium | **Free** |
| Size | 20 MB | 10 MB |
| Requires iOS | 13.0 | **12.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [treeinspired GmbH](https://appshunter.io/developer/373040913) | [CareCloud Corp.](https://appshunter.io/developer/431253949) |

## What reviewers say

### ICD

[App page](https://appshunter.io/ios/app/icd-10-cm-codes-2022-reference/id415731352)

Access a comprehensive, offline digital reference for ICD-10-CM disease codes. Easily search, browse, and share medical classification information, replacing bulky physical books with a convenient mobile solution. Stay updated with the latest code revisions.

**Highlights:** Offline access to ICD-10-CM codes, Search by disease or code, Browse by chapters and sections, List of similar diseases, History and bookmarks, Information sharing via email, Regular data updates

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ICD-10 for 1 Month | $3.49 | per month |
| ICD-10 for 6 Months | $14.99 | per 6 months |
| ICD-10 for 12 Months | $22.49 | per year |


### ICD 9

[App page](https://appshunter.io/ios/app/icd-9-10/id821550817)

This app facilitates the transition to ICD-10 coding for medical professionals. It offers quick conversion between ICD-9 and ICD-10 diagnostic codes, with detailed descriptions and alternative codes. Users can also search for codes and save frequently used ones for fast access.

**Highlights:** ICD-9 to ICD-10 conversion, Detailed ICD-10 code descriptions, View ICD-10 alternatives, Search ICD-10 and view ICD-9, Access specialty common codes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ICD free?

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

### Is ICD 9 free?

ICD 9 is free to download, with no in-app purchases.

### Which has better reviews, ICD or ICD 9?

ICD 9 is rated higher. ICD averages 4.0 out of 5 from 4 ratings, while ICD 9 averages 4.3 from 22 ratings.

### Do ICD or ICD 9 have ads?

Neither ICD nor ICD 9 shows ads.

### Which is updated more often, ICD or ICD 9?

ICD ships an update every 14 months, and ICD 9 every 5 weeks. Most recently, ICD was updated on August 26, 2026 and ICD 9 on June 10, 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.*