# Case Files vs USMLE Exam Prep

The clearest difference is in-app purchases: USMLE Exam Prep at none against Case Files's 6. USMLE Exam Prep also leads on update cadence (every 4 months vs every 21 months) and iOS requirement (13.0 vs 15.6). Case Files's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Case Files sells 6 in-app purchases, starting at $9.99 per 7 days. USMLE Exam Prep asks for nothing beyond the download.

Case Files ships an update every 21 months, USMLE Exam Prep every 4 months. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Case Files | USMLE Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (12 ratings)](https://appshunter.io/ios/app/usmle-exam-prep-step-1/id1644924207/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Every 4 months** |
| Monetization | — | Ad-supported |
| Size | 20 MB | 9 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Expanded Apps](https://appshunter.io/developer/313709778) | [Golden Mind Services LTD](https://appshunter.io/developer/417614614) |

## What reviewers say

### Case Files

[App page](https://appshunter.io/ios/app/case-files-biochemistry/id955265985)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $9.99 | per 7 days |
| Weekly Access | $10.99 | per 7 days |
| 1 Month | $18.99 | per month |
| 1 Year | $79.99 | per year |
| Lifetime Access | $29.99 | one-time |
| Case Files Biochemistry Test Review Questions for USMLE Step 1 & NBDE Exams | $39.99 | one-time |


### USMLE Exam Prep

[App page](https://appshunter.io/ios/app/usmle-exam-prep-step-1/id1644924207)

Prepare for the USMLE Step 1 exam with a comprehensive practice guide. It offers hundreds of questions, offline access, and personalized review options to track your progress and focus on challenging areas. Create custom quizzes for targeted study.

**Highlights:** Offline access, Hundreds of practice questions, Modern design, Answer review, Progress tracking, Targeted question practice, Custom quiz creation

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

**In-app purchases:** none


## Frequently asked questions

### Is Case Files free?

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

### Is USMLE Exam Prep free?

USMLE Exam Prep is free to download, with no in-app purchases.

### Do Case Files or USMLE Exam Prep have ads?

USMLE Exam Prep shows ads; Case Files does not.

### Which is updated more often, Case Files or USMLE Exam Prep?

Case Files ships an update every 21 months, and USMLE Exam Prep every 4 months. Most recently, Case Files was updated on October 24, 2026 and USMLE Exam Prep on November 3, 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.*