# Viz.ai vs RapidAI

Viz.ai and RapidAI both sit at 4.2 stars, but that hides the real split: 43% of RapidAI's written reviews are positive against 14% of Viz.ai's. Viz.ai's advantage is monetization model (free vs ad-supported). On price, rating, ratings volume and update cadence there is nothing between them.

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

Viz.ai holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 36 and 13 respectively. Written reviews complicate that: 14% of Viz.ai's written reviews are positive against 43% of RapidAI's, so the app with the better star average is not the one people write more warmly about.

Viz.ai ships an update fortnightly, RapidAI every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Viz.ai | RapidAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (36 ratings)](https://appshunter.io/ios/app/vizai/id1222399372/reviews)** | [4.0 (13 ratings)](https://appshunter.io/ios/app/rapidai/id1458520461/reviews) |
| Number of ratings | **36** | 13 |
| Positive reviews | 14.3% of reviews | **42.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 56 MB | 125 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Viz.ai, Inc.](https://appshunter.io/developer/1222399371) | [iSchemaView](https://appshunter.io/developer/1384787523) |

## What reviewers say

### Viz.ai

[App page](https://appshunter.io/ios/app/vizai/id1222399372)

This AI-powered telehealth platform assists clinicians in detecting critical diseases like stroke through advanced imaging analysis. It automates workflows and provides mobile imaging with HIPAA-compliant messaging to synchronize care across specialties.

**Highlights:** AI-powered disease detection, Automated CT perfusion imaging, Mobile imaging capabilities, HIPAA-compliant messaging, Synchronized clinical workflows, Remote installation

**Features:** macOS Compatibility

**In-app purchases:** none


### RapidAI

[App page](https://appshunter.io/ios/app/rapidai/id1458520461)

This application provides AI-driven medical imaging analysis for care teams. It enables rapid, precise management of life-threatening conditions, delivering clinical decision support to accelerate treatment and improve patient outcomes. Physicians receive real-time notifications and can access patient imaging on their mobile devices.

**Highlights:** AI-driven medical imaging analysis, Real-time notifications for new cases, Access to patient imaging in seconds, DICOM viewer with zoom and rotation, Organize case results from multiple sites, In-app calling for team communication

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Viz.ai free?

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

### Is RapidAI free?

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

### Which has better reviews, Viz.ai or RapidAI?

Viz.ai is rated higher. Viz.ai averages 4.2 out of 5 from 36 ratings, while RapidAI averages 4.0 from 13 ratings.

### Do Viz.ai or RapidAI have ads?

Neither Viz.ai nor RapidAI shows ads.

### Which is updated more often, Viz.ai or RapidAI?

Viz.ai ships an update fortnightly, and RapidAI every 2 weeks. Most recently, Viz.ai was updated on October 24, 2026 and RapidAI on October 24, 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.*