# ICD 10 Coding Guide vs CDI+

The clearest difference is review sentiment: CDI+ at 100% against ICD 10 Coding Guide's 17%. CDI+ also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 1). ICD 10 Coding Guide's advantage is ratings volume (167 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. ICD 10 Coding Guide sells 1 in-app purchase, starting at $9.99 per year. CDI+ asks for nothing beyond the download.

CDI+ holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: ICD 10 Coding Guide has 167 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 17% of ICD 10 Coding Guide's written reviews are positive against 100% of CDI+'s.

ICD 10 Coding Guide ships an update every 11 months, CDI+ every 4 months. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ICD 10 Coding Guide | CDI+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (167 ratings)](https://appshunter.io/ios/app/icd-10-coding-guide-unbound/id1055441695/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cdi-plus/id1553574519/reviews)** |
| Number of ratings | **167** | 1 |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 months** |
| Monetization | Subscription | **Free** |
| Size | 12 MB | 42 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Pinson and Tang LLC](https://appshunter.io/developer/1188201611) |

## What reviewers say

### ICD 10 Coding Guide

[App page](https://appshunter.io/ios/app/icd-10-coding-guide-unbound/id1055441695)

Quickly find the latest ICD-10 medical codes with this offline mobile app. Search by code, disease, injury, drug, or keyword. Features include color-coded trees, notes, highlights, and favorites for efficient code assignment.

**Highlights:** Offline ICD-10-CM code access, Rapid search by code, disease, or keyword, Color-keyed Code Trees, Notes and highlights, Favorites for quick access, Companion website

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ICD-10-CM Coding Guide | $9.99 | per year |


### CDI+

[App page](https://appshunter.io/ios/app/cdi-plus/id1553574519)

This app provides guidance for coding and clinical documentation integrity professionals. It explains principles for accurate documentation to help healthcare facilities improve their records. The content is based on a long-standing, annually updated pocket guide.

**Highlights:** Accurate documentation principles, Coding professional guidance, Physician documentation support, Annual content updates, Easy-to-grasp explanations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ICD 10 Coding Guide free?

ICD 10 Coding Guide is free to download, with in-app purchases available.

### Is CDI+ free?

CDI+ is free to download, with no in-app purchases.

### Which has better reviews, ICD 10 Coding Guide or CDI+?

CDI+ is rated higher. ICD 10 Coding Guide averages 4.4 out of 5 from 167 ratings, while CDI+ averages 5.0 from 1 ratings.

### Do ICD 10 Coding Guide or CDI+ have ads?

Neither ICD 10 Coding Guide nor CDI+ shows ads.

### Which is updated more often, ICD 10 Coding Guide or CDI+?

ICD 10 Coding Guide ships an update every 11 months, and CDI+ every 4 months. Most recently, ICD 10 Coding Guide was updated on October 9, 2026 and CDI+ on September 30, 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.*