# IMAIOS e vs CT

The clearest difference is review sentiment: CT at 100% against IMAIOS e's 48%. CT also leads on in-app purchases (none vs 2) and iOS requirement (13.0 vs 16.6). IMAIOS e's advantage is ads (none vs shown) and update cadence (every 9 days vs every 12 months). On price 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. CT asks for nothing beyond the download.

IMAIOS e holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: IMAIOS e has 1.4K ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 48% of IMAIOS e's written reviews are positive against 100% of CT's, so the app with the better star average is not the one people write more warmly about.

IMAIOS e ships an update every 9 days, CT every 12 months. The most recent releases landed on September 26, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | IMAIOS e | CT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/imaios-e-anatomy/id334876403/reviews)** | [4.5 (12 ratings)](https://appshunter.io/ios/app/ct-computed-tomography/id1562592280/reviews) |
| Number of ratings | **1.4K** | 12 |
| Positive reviews | 47.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 12 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#42** | — |
| Size | 2.1 GB | 55 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [IMAIOS](https://appshunter.io/developer/334876406) | [Fabricio Tarter](https://appshunter.io/developer/1533271635) |

## What reviewers say

### IMAIOS e

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

**Currently charting:** #42 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 |


### CT

[App page](https://appshunter.io/ios/app/ct-computed-tomography/id1562592280)

This app provides a didactic and effective way for students, radiologists, and bio-image graduates to learn and reinforce their knowledge of computed tomography protocols. It features a human body model with selectable protocols, detailing essential information for each study.

**Highlights:** Human body model for protocol selection, Detailed protocol information, Indications and preparation guidance, Scout view and FOV details, Cut thickness and gap information, Window settings and reconstruction plans, Protocol-specific images

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

**In-app purchases:** none


## Frequently asked questions

### Is IMAIOS e free?

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

### Is CT free?

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

### Which has better reviews, IMAIOS e or CT?

IMAIOS e is rated higher. IMAIOS e averages 4.9 out of 5 from 1.4K ratings, while CT averages 4.5 from 12 ratings.

### Do IMAIOS e or CT have ads?

CT shows ads; IMAIOS e does not.

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

IMAIOS e ships an update every 9 days, and CT every 12 months. Most recently, IMAIOS e was updated on September 26, 2026 and CT on September 9, 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.*