# AR Needle Guide vs RadiologyApp

The clearest difference is in-app purchases: AR Needle Guide at none against RadiologyApp's 2. AR Needle Guide also leads on iOS requirement (12.0 vs 18.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RadiologyApp sells 2 in-app purchases, starting at $4.99 per month. AR Needle Guide asks for nothing beyond the download.

AR Needle Guide ships an update monthly, RadiologyApp fortnightly. The most recent releases landed on August 28, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | AR Needle Guide | RadiologyApp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 89 MB | 9 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Kazufumi Suzuki](https://appshunter.io/developer/1512087197) | [Edson Knapp](https://appshunter.io/developer/1450598864) |

## What reviewers say

### AR Needle Guide

[App page](https://appshunter.io/ios/app/ar-needle-guide/id1516215649)

**In-app purchases:** none


### RadiologyApp

[App page](https://appshunter.io/ios/app/radiologyapp/id6741454156)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly. | $4.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is AR Needle Guide free?

AR Needle Guide is free to download, with no in-app purchases.

### Is RadiologyApp free?

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

### Do AR Needle Guide or RadiologyApp have ads?

Neither AR Needle Guide nor RadiologyApp shows ads.

### Which is updated more often, AR Needle Guide or RadiologyApp?

AR Needle Guide ships an update monthly, and RadiologyApp fortnightly. Most recently, AR Needle Guide was updated on August 28, 2026 and RadiologyApp on September 22, 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.*