# Human Immune System Quiz vs USMLE Practice Test Step 2

The clearest difference is price: USMLE Practice Test Step 2 at Free against Human Immune System Quiz's $1.99. USMLE Practice Test Step 2 also leads on iOS requirement (9.2 vs 11.0). Human Immune System Quiz's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

USMLE Practice Test Step 2 is free to download; Human Immune System Quiz costs $1.99 up front. USMLE Practice Test Step 2 sells 1 one-off in-app purchase. Human Immune System Quiz asks for nothing beyond the download.

## The numbers

| Metric | Human Immune System Quiz | USMLE Practice Test Step 2 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 43 months | — |
| Size | 17 MB | 6 MB |
| Requires iOS | 11.0 | **9.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Coskun CAKIR](https://appshunter.io/developer/482066275) | [MOON MOUNTAIN INC](https://appshunter.io/developer/1555760990) |

## What reviewers say

### Human Immune System Quiz

[App page](https://appshunter.io/ios/app/human-immune-system-quiz/id1006635722)

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

**In-app purchases:** none


### USMLE Practice Test Step 2

[App page](https://appshunter.io/ios/app/usmle-practice-test-step-2/id1470600456)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USMLE Practice Test Step 2 | $9.99 | one-time |


## Frequently asked questions

### Is Human Immune System Quiz free?

Human Immune System Quiz costs $1.99, with no in-app purchases.

### Is USMLE Practice Test Step 2 free?

USMLE Practice Test Step 2 is free to download, with in-app purchases available.

### Do Human Immune System Quiz or USMLE Practice Test Step 2 have ads?

Neither Human Immune System Quiz nor USMLE Practice Test Step 2 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.*