# Viz.ai vs Cortex Referral

The clearest difference is update cadence: Viz.ai at fortnightly against Cortex Referral's monthly. Cortex Referral's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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 ships an update fortnightly, Cortex Referral monthly. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Viz.ai | Cortex Referral |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (36 ratings)](https://appshunter.io/ios/app/vizai/id1222399372/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | — |
| Size | 56 MB | 52 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Viz.ai, Inc.](https://appshunter.io/developer/1222399371) | [Cortex Neurovascular South Sound PLLC](https://appshunter.io/developer/6784270587) |

## 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


### Cortex Referral

[App page](https://appshunter.io/ios/app/cortex-referral/id6790437673)

**Features:** macOS Compatibility, 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 Cortex Referral free?

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

### Do Viz.ai or Cortex Referral have ads?

Neither Viz.ai nor Cortex Referral shows ads.

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

Viz.ai ships an update fortnightly, and Cortex Referral monthly. Most recently, Viz.ai was updated on October 3, 2026 and Cortex Referral on October 10, 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.*