# IMAIOS e vs misTMJ

The clearest difference is in-app purchases: misTMJ at none against IMAIOS e's 2. misTMJ also leads on iOS requirement (11.0 vs 16.6). IMAIOS e's advantage is update cadence (every 9 days vs monthly) and chart position (#71 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. IMAIOS e sells 2 in-app purchases, starting at $21.99 per month. misTMJ asks for nothing beyond the download.

IMAIOS e ships an update every 9 days, misTMJ monthly. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | IMAIOS e | misTMJ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/imaios-e-anatomy/id334876403/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 47.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#71** | — |
| Size | 2.1 GB | 594 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [IMAIOS](https://appshunter.io/developer/334876406) | [Himalaya Computing](https://appshunter.io/developer/1205321932) |

## What reviewers say

### IMAIOS e

[App page](https://appshunter.io/ios/app/imaios-e-anatomy/id334876403)

**Currently charting:** #71 Top Grossing · Medical (US App Store)

This comprehensive human anatomy atlas offers over 26,000 medical images, including various views and illustrations. It allows users to explore anatomical structures with interactive features and multiple language options. A free preview is available before subscribing to the full, continuously updated atlas.

**Highlights:** 26,000+ medical and anatomical images, Axial, coronal, sagittal views, Radiography and angiography images, Dissection pictures and illustrations, Interactive labeling and search, 12 language options

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| e-Anatomy monthly Subscription | $21.99 | per month |
| e-Anatomy one year Subscription | $132.99 | per year |


### misTMJ

[App page](https://appshunter.io/ios/app/mistmj/id1592838220)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IMAIOS e free?

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

### Is misTMJ free?

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

### Do IMAIOS e or misTMJ have ads?

Neither IMAIOS e nor misTMJ shows ads.

### Which is updated more often, IMAIOS e or misTMJ?

IMAIOS e ships an update every 9 days, and misTMJ monthly. Most recently, IMAIOS e was updated on September 23, 2026 and misTMJ on September 18, 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.*