# iRadTech ESP vs IDV

The clearest difference is price: IDV at Free against iRadTech ESP's $9.99. IDV also leads on update cadence (fortnightly vs every 24 months). iRadTech ESP's advantage is iOS requirement (11.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

IDV is free to download; iRadTech ESP costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iRadTech ESP ships an update every 24 months, IDV fortnightly. The most recent releases landed on October 22, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | iRadTech ESP | IDV |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[4.7 (550 ratings)](https://appshunter.io/ios/app/idv-imaios-dicom-viewer/id1444841062/reviews)** |
| Number of ratings | — | **550** |
| Positive reviews | — | 61.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 95 MB | 123 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Ballinger and Bruckner, LLP](https://appshunter.io/developer/692079862) | [IMAIOS](https://appshunter.io/developer/334876406) |

## What reviewers say

### iRadTech ESP

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

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

**In-app purchases:** none


### IDV

[App page](https://appshunter.io/ios/app/idv-imaios-dicom-viewer/id1444841062)

View DICOM medical imaging files from various sources securely on your device. Offers intuitive tools for image manipulation and measurement. Free for personal use, with an online version available.

**Highlights:** DICOM file support, Image scrolling, Image manipulation, Measurement tools, Secure local storage, Online version available

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 🆓 Completely free with no ads or in-app purchases
- 🚀 Fast and smooth performance on most devices
- 📱 Works seamlessly with cloud storage (Dropbox, Google Drive, iCloud)
- 🎯 Simple file importing with automatic study organization

**What reviewers complain about**

- 🐛 Frequent crashes on iPad Pro and newer iOS versions
- ❌ JPEG2000 Lossless format not supported
- 🚫 Inconsistent DICOM file compatibility
- 📏 Measurements displayed only in pixels, not clinical units
- 🔧 Zip file import functionality unreliable

**Reported bugs**

- App crashes when opening zip files on iPad
- Loading screen freezes indefinitely on newer iOS versions
- DICOM files fail to open despite successful import
- Force close errors when accessing files
- Cross-reference visualization disappeared after recent update

**Requested features**

- Volume rendering capability for 3D visualization
- JPEG2000 Lossless format support
- Side-by-side comparison of multiple studies
- Annotation tools (straight and dotted lines)
- MPR rotation capabilities for double oblique sections


## Frequently asked questions

### Is iRadTech ESP free?

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

### Is IDV free?

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

### Do iRadTech ESP or IDV have ads?

Neither iRadTech ESP nor IDV shows ads.

### Which is updated more often, iRadTech ESP or IDV?

iRadTech ESP ships an update every 24 months, and IDV fortnightly. Most recently, iRadTech ESP was updated on October 22, 2026 and IDV on October 29, 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.*