Comparison

Case Files vs First Aid QA for USMLE Step 1

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

Head to head
About

Case Files

This app provides over 50 clinical pathology cases with USMLE-style questions to help medical students learn through real-world patient scenarios. It offers interactive features, study modes, and progress tracking to improve exam scores and clinical problem-solving skills.

Highlights
  • 50+ clinical cases with USMLE-style questions
  • Interactive case discussions and comprehension questions
  • Study, Exam, and Bookmark modes for question review
  • Progress tracking and score storage
  • Clinical pearls and approach to problem-solving
  • iCloud support for multi-device use
Features
Read full description

Master Pathology Through Real Clinical Cases -Learn pathology in the context of real patients. Case Files: Pathology helps you connect disease mechanisms, clinical presentation, and key concepts—so the material finally makes sense. Understand, Don’t Memorize -Pathology is dense and detail-heavy. This app helps you break down complex diseases into clear mechanisms and patterns you can actually understand and retain. Built for Exam Success -Prepare for Step 1 and course exams with focused, high-yield content: -50+ clinical cases -Board-style questions and explanations -Key disease mechanisms and definitions -Reinforced conceptual understanding Learn Faster, Think Smarter -Study mode with instant feedback -Exam mode for timed practice -Bookmark and track progress -Learn in short, focused sessions Trusted Case Files® System -Real-world clinical scenarios -Proven case-based learning -Designed for medical students Get Started -Download to try a sample case. Unlock full access to master pathology. Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/ Expanded Apps Terms of Use: https://expandedapps.com/terms-of-use/ Second Edition

About

First Aid QA for USMLE Step 1

Prepare for the USMLE Step 1 with a comprehensive Q&A review. This app offers 1,000 board-style questions, detailed explanations, and high-yield facts linked to a best-selling study guide. Access content offline after initial download.

Highlights
  • 1000 board-style questions
  • Detailed explanations for answers
  • Linked to First Aid study guide
  • 30+ high-yield images, diagrams, tables
  • One complete practice exam
  • Offline content access
  • SmartSearch technology
Features
Read full description

"Try before you buy" - Download the FREE App, which includes sample content. An in-App purchase is required to unlock all content.   1,000 questions and answers prepare you for the USMLE Step 1! The only comprehensive Q&A review for the USMLE Step directly linked to high-yield facts from Dr. Le's First Aid for the USMLE Step 1, this essential study guide offers 1000 board-style questions and answers, easy-to-navigate, high yield explanations for correct and incorrect answers, and more than 350 accompanying images. Key Features * 1000 board-style questions and answers -- reviewed and approved -- by students who just aced the exam * Detailed explanations for both right and wrong answers - with letter options in boldface for at-a-glance review * Chapters keyed to Dr. Le's First Aid for the USMLE Step 1 so you can simultaneously review questions and high-yield facts 1 * 30+ high-yield images, diagrams, and tables * One complete practice exam consisting of 7 blocks of 50 questions simulates the exam experience No internet connection is required to access the content after the initial download. Find information quickly using powerful SmartSearch technology. Search part of term for those hard to spell medical terms. Content licensed from printed ISBN 10: 0071744029 Content licensed from printed ISBN 13: 978-0071744027 SUBSCRIPTION : Please choose an auto renewable subscription plan to receive content access & continuous updates. Your subscription automatically renews as per your plan, so you always have the latest content.   Yearly auto-renewing payments - $39.99   Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user & auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable.   If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-30000   Privacy Policy-https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions-https://www.skyscape.com/terms-of-service/licenseagreement.aspx   Editor(s):  Tao Le, James Feinstein Publisher: The McGraw-Hill Companies, Inc.

Screenshots

Case Files4 screens
First Aid QA for USMLE Step 14 screens

Verdict

The call

The clearest difference is review sentiment: First Aid QA for USMLE Step 1 at 100% against Case Files's 33%. First Aid QA for USMLE Step 1 also leads on iOS requirement (13.0 vs 15.6). Case Files's advantage is ads (none vs shown). On price, update cadence, in-app purchases and monetization model 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 $7.99 per 7 days and First Aid QA for USMLE Step 1 sells 6 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Case Files ships an update every 19 months, First Aid QA for USMLE Step 1 every 31 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 7 level
Case Files versus First Aid QA for USMLE Step 1: the parameters behind the verdict, then further details
ParameterCase FilesFirst Aid QA for USMLE Step 1
PriceFreeFree
Rating—4.5 (83 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings—83 — better
Update frequencyEvery 19 months — betterEvery 31 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.613.0 — better
Further details — not scored
Size21 MB147 MB
Age rating12+17+
DeveloperExpanded AppsSkyscape Medpresso Inc

Customer experience

Case Files

Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

First Aid QA for USMLE Step 1

All ratings83 ratings
Positive88.0%
Neutral3.6%
Negative8.4%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

Case Files

Subscriptions5
  • 1 Week$7.997 Days
  • Weekly Access$11.997 Days
  • 1 Month$18.991 Month
Show 2 more
  • Monthly Access$19.991 Month
  • 1 Year$69.991 Year
One-time1
  • Lifetime$39.99
6 purchases

First Aid QA for USMLE Step 1

Subscriptions6
  • USMLE-1 Monthly Subscription$19.991 Month
  • USMLE-1 3 Month Subscription$25.993 Months
  • 25% Off for Limited Period$29.991 Year
Show 3 more
  • 20% off for Limited Period$31.991 Year
  • 15% Off for Limited Period$33.991 Year
  • First Aid Q&A for USMLE Step 1$38.991 Year

Questions

Is Case Files free?
Case Files is free to download, with in-app purchases available.
Is First Aid QA for USMLE Step 1 free?
First Aid QA for USMLE Step 1 is free to download, with in-app purchases available.
Do Case Files or First Aid QA for USMLE Step 1 have ads?
First Aid QA for USMLE Step 1 shows ads; Case Files does not.
Which is updated more often, Case Files or First Aid QA for USMLE Step 1?
Case Files ships an update every 19 months, and First Aid QA for USMLE Step 1 every 31 months. Most recently, Case Files was updated on November 6, 2026 and First Aid QA for USMLE Step 1 on November 7, 2026.

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