# UWS SAFE vs Chiro Prep

The clearest difference is in-app purchases: UWS SAFE at none against Chiro Prep's 1. Chiro Prep's advantage is update cadence (every 3 months vs every 65 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Chiro Prep sells 1 in-app purchase, starting at $12.99 per month. UWS SAFE asks for nothing beyond the download.

UWS SAFE ships an update every 65 months, Chiro Prep every 3 months. The most recent releases landed on September 17, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | UWS SAFE | Chiro Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (11 ratings)](https://appshunter.io/ios/app/chiro-prep/id6449434901/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 65 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 34 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [University of Western States](https://appshunter.io/developer/1566142709) | [Chiro Prep LLC](https://appshunter.io/developer/1689051918) |

## What reviewers say

### UWS SAFE

[App page](https://appshunter.io/ios/app/uws-safe/id1566142707)

**Features:** Vision Pro support

**In-app purchases:** none


### Chiro Prep

[App page](https://appshunter.io/ios/app/chiro-prep/id6449434901)

Prepare for your chiropractic board exams with a comprehensive question bank. Save questions, create custom exams, and resume tests at your convenience. Content is continuously updated to help you succeed.

**Highlights:** Thousands of practice questions, Resume incomplete exams, Save questions to folders, Create custom exams, Covers Parts 1, 2, 3, 4, and PT, Daily content updates

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chiro Prep Content | $12.99 | per month |


## Frequently asked questions

### Is UWS SAFE free?

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

### Is Chiro Prep free?

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

### Do UWS SAFE or Chiro Prep have ads?

Neither UWS SAFE nor Chiro Prep shows ads.

### Which is updated more often, UWS SAFE or Chiro Prep?

UWS SAFE ships an update every 65 months, and Chiro Prep every 3 months. Most recently, UWS SAFE was updated on September 17, 2026 and Chiro Prep on September 7, 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.*