# UWS SAFE vs OT Prep

The clearest difference is in-app purchases: UWS SAFE at none against OT Prep's 3. UWS SAFE also leads on iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. OT Prep sells 3 in-app purchases, starting at $9.99 per month. UWS SAFE asks for nothing beyond the download.

## The numbers

| Metric | UWS SAFE | OT Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 65 months | — |
| Size | 30 MB | 2 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [University of Western States](https://appshunter.io/developer/1566142709) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### UWS SAFE

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

**Features:** Vision Pro support

**In-app purchases:** none


### OT Prep

[App page](https://appshunter.io/ios/app/ot-prep-nbcot-practice/id6790671265)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $9.99 | per month |
| Annual Access | $49.99 | per year |
| Lifetime Access | $99.99 | one-time |


## Frequently asked questions

### Is UWS SAFE free?

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

### Is OT Prep free?

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

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

Neither UWS SAFE nor OT Prep shows ads.

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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.*