# ICD 10 Coding Guide vs E/M Coder

The clearest difference is in-app purchases: E/M Coder at none against ICD 10 Coding Guide's 1. E/M Coder also leads on update cadence (every 2 weeks vs every 12 months) and review sentiment (25% vs 17%). ICD 10 Coding Guide's advantage is rating (4.4 vs 4.0) and ratings volume (167 vs 8). 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. E/M Coder asks for nothing beyond the download.

ICD 10 Coding Guide holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: ICD 10 Coding Guide has 167 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 17% of ICD 10 Coding Guide's written reviews are positive against 25% of E/M Coder's, so the app with the better star average is not the one people write more warmly about.

ICD 10 Coding Guide ships an update every 12 months, E/M Coder every 2 weeks. The most recent releases landed on October 1, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ICD 10 Coding Guide | E/M Coder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (167 ratings)](https://appshunter.io/ios/app/icd-10-coding-guide-unbound/id1055441695/reviews)** | [4.0 (8 ratings)](https://appshunter.io/ios/app/em-coder/id1548963112/reviews) |
| Number of ratings | **167** | 8 |
| Positive reviews | 16.7% of reviews | **25.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Subscription | **Free** |
| Size | 12 MB | 49 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [StatNote, Inc.](https://appshunter.io/developer/1548963114) |

## 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 |


### E/M Coder

[App page](https://appshunter.io/ios/app/em-coder/id1548963112)

This tool helps outpatient healthcare professionals determine the appropriate E/M code for patient visits. It guides users through medical decision-making or time spent to suggest visit levels. The app is based on AMA CPT® guidelines and CMS 2021 PFS Final Rule updates.

**Highlights:** Determine E/M code for outpatient visits, Based on medical decision-making, Based on time spent, Uses AMA CPT® guidelines, Updated with CMS 2021 PFS Final Rule

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

**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 E/M Coder free?

E/M Coder is free to download, with no in-app purchases.

### Which has better reviews, ICD 10 Coding Guide or E/M Coder?

ICD 10 Coding Guide is rated higher. ICD 10 Coding Guide averages 4.4 out of 5 from 167 ratings, while E/M Coder averages 4.0 from 8 ratings.

### Do ICD 10 Coding Guide or E/M Coder have ads?

Neither ICD 10 Coding Guide nor E/M Coder shows ads.

### Which is updated more often, ICD 10 Coding Guide or E/M Coder?

ICD 10 Coding Guide ships an update every 12 months, and E/M Coder every 2 weeks. Most recently, ICD 10 Coding Guide was updated on October 1, 2026 and E/M Coder on September 27, 2026.

---

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