---
title: "Case Files - USMLE Test Prep - Reviews, Revenue and Downloads in China | Apple App Store"
description: "Sharpen your critical thinking skills and prepare for real-world practice with the venerable LANGE Case Files, the world’s best-selling case series. Experience with clinical cases is key to excelling "
---

# Case Files - USMLE Test Prep — China
> Step 1 Prep - Medical Cases

![Case Files App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/8a/cd/ef/8acdef66-5184-e06d-7302-06cfccbe5288/AppIcon-0-0-1x_U007epad-0-1-0-85-220.png/434x0w.png)

**Developer:** [Expanded Apps](https://apptail.io/developer/expanded-apps-vqd) (United States)
**Category:** Medical
**Rating:** 5.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.expandedapps.casefilesseries
**Store:** Apple App Store
**Country:** China
**Version:** 2.5 (released 2026-06-03)
**Original Release:** 2013-10-15
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/cn/app/app/id656504693)
**AppTail Page:** [https://apptail.io/app/case-files-usmle-test-prep-tqtb/china](https://apptail.io/app/case-files-usmle-test-prep-tqtb/china)

## Case Files Description
Sharpen your critical thinking skills and prepare for real-world practice with the venerable LANGE Case Files, the world’s best-selling case series. Experience with clinical cases is key to excelling in your rotations and post-graduate training. Case Files is an excellent study resource for medical students traversing their clinical clerkship with realistic cases and accompanying USMLE-style questions. 

This free application includes 1 sample case study from each of the titles that are available.  Each full application is available with a subscription for that particular title.  These Case Files apps will help you excel on the clerkship and improve your shelf-exam score. 

Each case has been designed for the iPad and iPhone/iPod with interactive features. With this system, you will learn in the context of real patients, rather than merely memorize facts.
•Clinical cases, each with USMLE-style questions 
•Clinical pearls that highlight key concepts 
•Primer on how to approach clinical problems and think like a doctor 
•Proven learning system that improves shelf-exam scores

iPhone, iPod, and iPad App Features:
•Study/Exam/Bookmark modes are available for USMLE-style review questions.
•In the Study mode, check the answers as you tackle the questions.
•In the Exam mode, time yourself and review the answers after the time is up.
•In the Bookmark mode, review only the questions you have flagged for further study.
•File away correctly answered questions after each practice quiz.
•Choose the number of questions in each practice quiz: 25, 50, 100, 150, 200, or all.
•Opt to include questions from previous quizzes.
•Learn further from interactive questions at the end of each case, with explanations.
•Sort cases by name or by case number.
•Take down notes using the Notes section for each case.
•Highlight key concepts in each case. 
•Study in horizontal or vertical mode on the iPhone and the iPad.
•Store quiz scores to track your progress.
•Save to iCloud to use app on multiple devices
•Choose preferred font sizes
•Create tags for each case
•Search cases by title or by tags

App Contents:

Section I: 
•Part 1. Approach to Learning 
•Part 2. Approach to Disease 
•Part 3: Approach to Reading 

Section II: Clinical Cases - Case Scenarios

Section III: Listing of Cases
•Listing by Case Number
•Listing by Disorder

Each case includes the following sections:
Case Description
•Answers to
•Approach to
•Clinical Pearls
•Case Questions and Answers 

Titles Included:
Anatomy
Anesthesiology
Biochemistry
Cardiology
Critical Care
Emergency Medicine
Family Medicine
Geriatrics
Gynecologic Surgery
High Risk Obstetrics
Internal Medicine
Microbiology
Neurology
Neuroscience
Obstetrics & Gynecology
Orthopaedic Surgery
Pathology
Pediatrics
Pharmacology
Physiology
Psychiatry
Surgery

Expanded Apps Terms of Service:  

Expanded Apps Privacy Policy:  

## Case Files Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/df/e8/99/dfe89950-a333-e414-ea25-48e213a2f467/e6829311-616b-4544-817f-571bdf068138_6_Plus_1_2688.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/b1/fc/01/b1fc01fd-600e-dde0-91ac-a4335da993e0/04266edf-e3f4-479c-a229-efefee93e45d_6_Plus_2_2688.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/ae/c3/1a/aec31aff-de9f-5a8f-e21c-1b4fd8211814/e334f277-2d3c-4c1c-bd14-bf08f93fe76a_6_Plus_3_2688.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/53/bc/4a/53bc4a12-6e1f-9234-8dc9-03bf205666f2/73346167-6f17-4004-83b2-5b0aafec79a0_6_Plus_5_2688.jpg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/c8/f1/79/c8f1799a-6a47-6378-78bc-2e475e5d2696/d6cc4995-ea10-41d0-abfe-eb7e7fd6d432_6_Plus_4_2688.jpg/1242x2688.png)

## Case Files Rating Breakdown in China
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## Case Files Reviews in China

### ***** "good"
Perfect app,ok
-- 官方翻江倒海, 2017-06-23

[View all Case Files reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Case Files In-App Purchases
| Item | Price |
|------|-------|
| Anatomy Case Files, 3e | ¥298.00 |
| Pharmacology | ¥198.00 |
| Pathology Case Files, 2e | ¥298.00 |
| Microbiology | ¥198.00 |
| High Risk Obstetrics OBGYN, 1e | ¥298.00 |
| 1 Week  | ¥68.00 |
| 1 Year | ¥598.00 |
| 1 Month | ¥128.00 |
| 1 Week | ¥68.00 |
| Neurology 4e Case Files Series | ¥298.00 |


## Case Files Discovered Keywords
- case files
- usmle test prep

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## Case Files Available In
- [Thailand](https://apptail.io/app/case-files-usmle-test-prep-tqtb/thailand)
- [China](https://apptail.io/app/case-files-usmle-test-prep-tqtb/china)
- [Japan](https://apptail.io/app/case-files-usmle-test-prep-tqtb/japan)
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---

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