# ICD9 On the Go vs ICD 10 Coding Guide

ICD9 On the Go and ICD 10 Coding Guide both sit at 4.4 stars, but that hides the real split: 92% of ICD9 On the Go's written reviews are positive against 17% of ICD 10 Coding Guide's. ICD9 On the Go also leads on monetization model (free with in-app purchases vs subscription) and iOS requirement (9.0 vs 15.0). ICD 10 Coding Guide's advantage is ratings volume (167 vs 42). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. ICD9 On the Go sells 1 one-off in-app purchase and ICD 10 Coding Guide sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for ICD9 On the Go against 4.4 for ICD 10 Coding Guide. Both are backed by a comparable volume of ratings — 42 and 167 respectively. Written reviews are what separate them: 92% of ICD9 On the Go's written reviews are positive against 17% of ICD 10 Coding Guide's.

Both ship on a similar rhythm, roughly every 11 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | ICD9 On the Go | ICD 10 Coding Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (42 ratings)](https://appshunter.io/ios/app/icd9-on-the-go/id395106691/reviews) | **[4.4 (167 ratings)](https://appshunter.io/ios/app/icd-10-coding-guide-unbound/id1055441695/reviews)** |
| Number of ratings | 42 | **167** |
| Positive reviews | **91.6% of reviews** | 16.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | Every 11 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 30 MB | 14 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 17+ |
| Developer | [VLR Software](https://appshunter.io/developer/375047405) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### ICD9 On the Go

[App page](https://appshunter.io/ios/app/icd9-on-the-go/id395106691)

This app provides a comprehensive ICD-9-CM diagnosis code database updated to 2016. It offers features for practicing billing, searching codes, and tagging favorites. An in-app upgrade to ICD-10 is available.

**Highlights:** ICD-9-CM diagnosis codes (updated to 2016), In-app upgrade to ICD-10, Universal app for iPhone, iPod Touch, and iPad, Browse codes with a unique interface, Intelligent search by word or code, Tag favorite codes, Share codes via email

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ICD9-CM 2014 codes | $4.99 | one-time |


### 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 |


## Frequently asked questions

### Is ICD9 On the Go free?

ICD9 On the Go is free to download, with in-app purchases available.

### Is ICD 10 Coding Guide free?

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

### Which has better reviews, ICD9 On the Go or ICD 10 Coding Guide?

ICD 10 Coding Guide is rated higher. ICD9 On the Go averages 4.4 out of 5 from 42 ratings, while ICD 10 Coding Guide averages 4.4 from 167 ratings.

### Do ICD9 On the Go or ICD 10 Coding Guide have ads?

Neither ICD9 On the Go nor ICD 10 Coding Guide shows ads.

### Which is updated more often, ICD9 On the Go or ICD 10 Coding Guide?

ICD9 On the Go ships an update every 11 months, and ICD 10 Coding Guide every 11 months. Most recently, ICD9 On the Go was updated on October 23, 2026 and ICD 10 Coding Guide on October 22, 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.*