# SHOT UK vs iRefer

The clearest difference is in-app purchases: SHOT UK at none against iRefer's 1. iRefer's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iRefer sells 1 in-app purchase, starting at $149.99 per year. SHOT UK asks for nothing beyond the download.

SHOT UK ships an update every 4 months, iRefer every 6 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SHOT UK | iRefer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 115 MB | 35 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [NHS](https://appshunter.io/developer/1192687136) | [The Royal College of Radiologists](https://appshunter.io/developer/1361218734) |

## What reviewers say

### SHOT UK

[App page](https://appshunter.io/ios/app/shot-uk/id1534545119)

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

**In-app purchases:** none


### iRefer

[App page](https://appshunter.io/ios/app/irefer/id6550924402)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iRefer Individual Plan | $149.99 | per year |


## Frequently asked questions

### Is SHOT UK free?

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

### Is iRefer free?

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

### Do SHOT UK or iRefer have ads?

Neither SHOT UK nor iRefer shows ads.

### Which is updated more often, SHOT UK or iRefer?

SHOT UK ships an update every 4 months, and iRefer every 6 weeks. Most recently, SHOT UK was updated on November 3, 2026 and iRefer on November 5, 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.*