# Viatris GBR Guide vs Clair

The clearest difference is in-app purchases: Viatris GBR Guide at none against Clair's 2. Clair's advantage is ads (none vs shown) and update cadence (every 2 months vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Clair sells 2 in-app purchases, starting at $9.99 per month. Viatris GBR Guide asks for nothing beyond the download.

Viatris GBR Guide ships an update every 6 months, Clair every 2 months. The most recent releases landed on November 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Viatris GBR Guide | Clair |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (601 ratings)](https://appshunter.io/ios/app/viatris-gbr-guide/id551091728/reviews)** | — |
| Number of ratings | **601** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 38 MB | 39 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Viatris Inc](https://appshunter.io/developer/1609910654) | [Cary Rx Incorporated](https://appshunter.io/developer/1234910727) |

## What reviewers say

### Viatris GBR Guide

[App page](https://appshunter.io/ios/app/viatris-gbr-guide/id551091728)

This app provides U.S. healthcare professionals with a cross-referenced directory of generic and brand pharmaceuticals. It allows for quick identification of brand names for generic drugs and vice versa.  It also displays Viatris product details when available.

**Highlights:** Generic-to-Brand Cross-Reference, Brand-to-Generic Cross-Reference, Alphabetical drug index, Smart search capabilities, Viatris product details

**Features:** macOS Compatibility

**In-app purchases:** none


### Clair

[App page](https://appshunter.io/ios/app/clair-clinical-ai-reference/id6479413733)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clair Professional | $9.99 | per month |
| Clair Basic | $9.99 | per month |


## Frequently asked questions

### Is Viatris GBR Guide free?

Viatris GBR Guide is free to download, with no in-app purchases.

### Is Clair free?

Clair is free to download, with in-app purchases available.

### Do Viatris GBR Guide or Clair have ads?

Viatris GBR Guide shows ads; Clair does not.

### Which is updated more often, Viatris GBR Guide or Clair?

Viatris GBR Guide ships an update every 6 months, and Clair every 2 months. Most recently, Viatris GBR Guide was updated on November 1, 2026 and Clair on October 8, 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.*