# IMAIOS e vs iRadTech ESP

The clearest difference is price: IMAIOS e at Free against iRadTech ESP's $9.99. IMAIOS e also leads on update cadence (every 9 days vs every 24 months) and chart position (#134 vs unranked). iRadTech ESP's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 16.6). On ads and device support there is nothing between them.

IMAIOS e is free to download; iRadTech ESP costs $9.99 up front. IMAIOS e sells 2 in-app purchases, starting at $21.99 per month. iRadTech ESP asks for nothing beyond the download.

IMAIOS e ships an update every 9 days, iRadTech ESP every 24 months. The most recent releases landed on September 29, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | IMAIOS e | iRadTech ESP |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| 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** | Every 24 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#134** | — |
| Size | 2.1 GB | 95 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [IMAIOS](https://appshunter.io/developer/334876406) | [Ballinger and Bruckner, LLP](https://appshunter.io/developer/692079862) |

## What reviewers say

### IMAIOS e

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

**Currently charting:** #134 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 |


### iRadTech ESP

[App page](https://appshunter.io/ios/app/iradtech-esp/id563141602)

**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 iRadTech ESP free?

iRadTech ESP costs $9.99, with no in-app purchases.

### Do IMAIOS e or iRadTech ESP have ads?

Neither IMAIOS e nor iRadTech ESP shows ads.

### Which is updated more often, IMAIOS e or iRadTech ESP?

IMAIOS e ships an update every 9 days, and iRadTech ESP every 24 months. Most recently, IMAIOS e was updated on September 29, 2026 and iRadTech ESP on September 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.*