Comparison

Case Files vs USMLE Exam Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Case Files

Features
Read full description

Master Biochemistry—Fast: Finally understand biochemistry through real clinical cases. Case Files: Biochemistry delivers high-yield content designed to simplify complex concepts and help you retain what matters. Understand—Don’t Memorize -Each case connects core biochemical concepts to real patient scenarios, helping you learn faster and with greater clarity. High-Yield Review That Makes Sense -Designed to make biochemistry easier: -50+ high-yield clinical cases -Clear explanations of complex concepts -Step-by-step clinical reasoning -Biochemistry pearls for quick review Built for Exam Success -Prepare effectively for USMLE Step 1 and course exams with focused, high-yield content. Study Anywhere, Anytime -Review cases quickly -Track your progress -Learn in short, focused sessions Trusted Case Files® Series -Proven case-based learning -Real-world clinical scenarios -High-yield, exam-focused content Get Started -Download the app to access sample cases. Unlock the full set for complete biochemistry review. Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/

 Expanded Apps Terms of Use: https://expandedapps.com/terms-of-use/ Third edition

About

USMLE Exam Prep

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
Read full description

A great practice guide to get prepared for the USMLE Step 1 exam. Here are some features: • No internet required • Hundreds of questions • A modern design • Review the answers • Keep the past tests to track progress • Only practice the questions you previously answered incorrectly • Practice more effectively by creating your own random quizzes This app is just a practice app and is not affiliated with USMLE® • Disclaimer: We have made every attempt to ensure the accuracy and reliability of the information provided on this app. However, the information is provided "as is" without warranty of any kind. This app is not intended to provide any medical advice.

Screenshots

Case Files4 screens
USMLE Exam Prep4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Case Files versus USMLE Exam Prep: the parameters behind the verdict, then further details
ParameterCase FilesUSMLE Exam Prep
PriceFreeFree
Rating—4.3 (12 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—12 — better
Update frequencyEvery 21 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size20 MB9 MB
Age rating12+4+
DeveloperExpanded AppsGolden Mind Services LTD

In-app purchases

6 purchases

Case Files

Subscriptions4
  • 1 Week$9.997 Days
  • Weekly Access$10.997 Days
  • 1 Month$18.991 Month
Show 1 more
  • 1 Year$79.991 Year
One-time2
  • Lifetime Access$29.99
  • Case Files Biochemistry Test Review Questions for USMLE Step 1 & NBDE Exams$39.99
None

USMLE Exam Prep

No in-app purchases

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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