# iDO Viewer vs VidistarViewer

The clearest difference is review sentiment: iDO Viewer at 100% against VidistarViewer's 50%. iDO Viewer also leads on rating (4.3 vs 3.0) and update cadence (every 3 months vs every 30 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iDO Viewer holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 100% of iDO Viewer's written reviews are positive against 50% of VidistarViewer's.

iDO Viewer ships an update every 3 months, VidistarViewer every 30 months. The most recent releases landed on September 7, 2026 and June 28, 2026 respectively.

## The numbers

| Metric | iDO Viewer | VidistarViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/ido-viewer/id494179581/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/vidistarviewer/id590259379/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 30 months |
| Monetization | Free | Free |
| Size | 26 MB | 1 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [EBM Technologies, Incorporated.](https://appshunter.io/developer/404511773) | [VidiStar, LLC](https://appshunter.io/developer/590259382) |

## What reviewers say

### iDO Viewer

[App page](https://appshunter.io/ios/app/ido-viewer/id494179581)

This application allows medical professionals to view multi-modality medical images and files from PACS servers on their mobile devices. It supports various imaging formats and offers tools for image manipulation and organization.

**Highlights:** Multi-modality imaging support, PACS server integration, Image manipulation (pan, zoom, window level), Support for JPG, BMP, PDF files, Quick layout adjustment, Fast image and data access

**In-app purchases:** none


### VidistarViewer

[App page](https://appshunter.io/ios/app/vidistarviewer/id590259379)

Access and review medical images, videos, and diagnostic reports instantly on your mobile device. Enhance patient understanding by showing them their studies directly. Supports various diagnostic DICOM studies for comprehensive review.

**Highlights:** Instant access to medical images and reports, View still images and video clips, Review diagnostic DICOM studies, Access patient information, Review studies from any location, Patient engagement tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iDO Viewer free?

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

### Is VidistarViewer free?

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

### Which has better reviews, iDO Viewer or VidistarViewer?

iDO Viewer is rated higher. iDO Viewer averages 4.3 out of 5 from 3 ratings, while VidistarViewer averages 3.0 from 2 ratings.

### Do iDO Viewer or VidistarViewer have ads?

Neither iDO Viewer nor VidistarViewer shows ads.

### Which is updated more often, iDO Viewer or VidistarViewer?

iDO Viewer ships an update every 3 months, and VidistarViewer every 30 months. Most recently, iDO Viewer was updated on September 7, 2026 and VidistarViewer on June 28, 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.*