VidistarViewer vs ONIS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VidistarViewer
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.
- 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
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VidistarViewer™ offers medical professionals instant access to their medical images and reports from their mobile Apple device(s). With VidistarViewer™, users may view still images, video clips, patient information, diagnostic reports, and review their diagnostic DICOM studies (i.e. echos, vascular studies, OBGYN, nuclear, cath, angio, etc.). Review Studies from Anywhere VidistarViewer™ includes similar functionality to VidiStar's web-solutions, and allows users to review studies and reports regardless of location. Engage Your Patients Use your iPad to show your patient their diagnostic study and enhance their engagement in their plan of care by educating them on their condition, thus heightening their understanding and furthering your patient-relationship.
ONIS
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ONIS Shot allows you to convert photos and videos to DICOM format and send them to a PACS. For each study, you can enter patient data, or retrieve them directly from a PACS server. This utility only works with a specific associated server, please contact us for more details.
Screenshots
Verdict
The clearest difference is update cadence: ONIS at every 5 weeks against VidistarViewer's every 30 months. ONIS also leads on iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VidistarViewer ships an update every 30 months, ONIS every 5 weeks. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.
| Parameter | VidistarViewer | ONIS |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 30 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 55 MB |
| Age rating | 17+ | 17+ |
| Developer | VidiStar, LLC | DigitalCore Corporation |
In-app purchases
VidistarViewer
No in-app purchases
ONIS
No in-app purchases









