Comparison

Case Files vs USMLE Surgery PreTest

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 medical education app offers 40 clinical case studies to help users learn evidence-based practice in gynecologic surgery. It includes interactive questions, discussions, and references to current literature, designed to improve clinical skills and exam scores.

Highlights
  • 40 clinical case studies
  • Evidence-based practice illustrations
  • Interactive questions and discussions
  • USMLE-style review questions
  • Clinical pearls and problem-solving primers
  • Progress tracking and notes section
  • Cross-device iCloud support
Features
Read full description

Master Gynecologic Surgery—Fast—Learn surgical decision-making through real clinical cases. Case Files: Gynecologic Surgery delivers high-yield content designed to build procedural understanding and clinical confidence. Think Like a Surgical Clinician -Each case reflects real operative scenarios, helping you decide when to intervene, how to manage complications, and how to approach surgical care. High-Yield Review for Surgical Decision-Making -Designed for exam prep and clinical training: -40 high-yield gynecologic surgery cases -Step-by-step clinical reasoning -Clear explanations and surgical pearls -Built for rapid understanding and retention Built for Exam & Rotation Success -Prepare effectively for USMLE Step 2 CK and OB/GYN rotations with focused, high-impact 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 gynecologic surgery review. Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/

 Expanded Apps Terms of Use: https://expandedapps.com/terms-of-use/ First Edition

About

USMLE Surgery PreTest

Prepare for medical licensure and shelf exams with extensive practice questions and detailed explanations. This app offers a comprehensive review of key surgical concepts, helping you master the material for your professional career.

Highlights
  • 390+ practice questions
  • Detailed explanations with images
  • 110+ tough quiz questions
  • Unlimited access to all surgical categories
  • Detailed results tracking
  • In-depth statistics
Features
Read full description

PreTest is the closest you can get to seeing the test before you take it! Great for course review and preparation for the USMLE Step 2 Clinical Knowledge (CK) and shelf exams, Surgery by PreTest puts everything you need to know right at your fingertips. Install the free version today and jump-start your studying! We have provided a limited free version of the app that you can try before deciding to upgrade. This version includes a limited amount of practice questions and basic progress metrics. Subscribe today and get access to: • 390+ practice questions • Detailed explanations with images • Developed by experts • 110+ tough quiz questions • Unlimited access to ALL categories: • Neurosurgery, otolaryngology • Critical care, trauma • Urology, orthopedics • Skin, oncology • Detailed results tracking • In depth statistics that display your strengths and weaknesses Topics include: · Pre- and Postoperative Care · Critical Care · Skin · Trauma and Shock · Transplants, Immunology, and Oncology · Endocrine Problems and the Breast · Gastrointestinal Tract, Liver, and Pancreas · Cardiothoracic Problems · Peripheral Vascular Problems · Urology · Orthopedics · Neurosurgery · Otolaryngology · Pediatric Surgery By offering a rigorous review of key concepts and facts, Surgery PreTest for the USMLE Step 2 gives you the knowledge you need to master the USMLE and medical boards to begin your rewarding professional career. Get access to all questions when you subscribe: • 1 Month: one auto-renewing payment of $12.99 • 12 Months: one auto-renewing payment of $39.99 This app offers two auto-renewing subscription options to help you pass your exam. -Payment will be charged to 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 -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal -Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase -Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Our Customer Success Team is available from 9am to 5pm, Monday - Friday (except on major holidays). Call us at 319-246-5271 and email us at support@hltcorp.com with any questions. Privacy Policy - http://builtbyhlt.com/privacy Terms of Conditions - http://builtbyhlt.com/EULA

Screenshots

Case Files4 screens
USMLE Surgery PreTest4 screens

Verdict

The call

The clearest difference is update cadence: USMLE Surgery PreTest at fortnightly against Case Files's every 10 months. USMLE Surgery PreTest also leads on iOS requirement (10.0 vs 15.6). Case Files's advantage is review sentiment (100% vs 80%). On price, ads, 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 $5.99 per 7 days and USMLE Surgery PreTest sells 2 in-app purchases, starting at $15.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Case Files ships an update every 10 months, USMLE Surgery PreTest fortnightly. The most recent releases landed on November 3, 2026 and November 1, 2026 respectively.

Scorecard3 real differences · 7 level
Case Files versus USMLE Surgery PreTest: the parameters behind the verdict, then further details
ParameterCase FilesUSMLE Surgery PreTest
PriceFreeFree
Rating—4.8 (38 ratings) — better
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings—38 — better
Update frequencyEvery 10 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.610.0 — better
Further details — not scored
Size24 MB126 MB
Age rating12+17+
DeveloperExpanded AppsHigher Learning Technologies

Customer experience

Case Files

Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

USMLE Surgery PreTest

All ratings38 ratings
Positive94.7%
Neutral2.6%
Negative2.6%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

6 purchases

Case Files

Subscriptions5
  • 1 Week$5.997 Days
  • Weekly Access$11.997 Days
  • 1 Month$17.991 Month
Show 2 more
  • Monthly Access$19.991 Month
  • 1 Year$59.991 Year
One-time1
  • Gynecology - Gynaecology & Obstetrics$39.99
2 purchases

USMLE Surgery PreTest

Subscriptions2
  • PreTest Surgery - 1 month3 Days trial$15.991 Month
  • PreTEst - 12 Months3 Days trial$49.991 Year

Questions

Is Case Files free?
Case Files is free to download, with in-app purchases available.
Is USMLE Surgery PreTest free?
USMLE Surgery PreTest is free to download, with in-app purchases available.
Do Case Files or USMLE Surgery PreTest have ads?
Neither Case Files nor USMLE Surgery PreTest shows ads.
Which is updated more often, Case Files or USMLE Surgery PreTest?
Case Files ships an update every 10 months, and USMLE Surgery PreTest fortnightly. Most recently, Case Files was updated on November 3, 2026 and USMLE Surgery PreTest on November 1, 2026.

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