# Harefield Transplant Guide vs RAUK

The clearest difference is update cadence: RAUK at every 2 months against Harefield Transplant Guide's every 26 months. Harefield Transplant Guide's advantage is iOS requirement (8.0 vs 15.0). 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.

Harefield Transplant Guide ships an update every 26 months, RAUK every 2 months. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Harefield Transplant Guide | RAUK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 2 months** |
| Size | 10 MB | 17 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Royal Brompton & Harefield NHS Foundation Trust](https://appshunter.io/developer/878181800) | [Regional Anaesthesia - UK (RA-UK)](https://appshunter.io/developer/1792170051) |

## What reviewers say

### Harefield Transplant Guide

[App page](https://appshunter.io/ios/app/harefield-transplant-guide/id878181797)

**Features:** macOS Compatibility

**In-app purchases:** none


### RAUK

[App page](https://appshunter.io/ios/app/rauk/id6740904382)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Harefield Transplant Guide free?

Harefield Transplant Guide is free to download, with no in-app purchases.

### Is RAUK free?

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

### Do Harefield Transplant Guide or RAUK have ads?

Neither Harefield Transplant Guide nor RAUK shows ads.

### Which is updated more often, Harefield Transplant Guide or RAUK?

Harefield Transplant Guide ships an update every 26 months, and RAUK every 2 months. Most recently, Harefield Transplant Guide was updated on October 2, 2026 and RAUK 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.*