Comparison

Case Files vs Guide to Diagnostic Tests

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

Guide to Diagnostic Tests

Access evidence-based information on over 450 diagnostic tests, including lab work, imaging, and therapeutic monitoring. This resource helps healthcare professionals quickly find answers to common questions about test selection, interpretation, and patient preparation.

Highlights
  • 450+ diagnostic tests
  • Evidence-based recommendations
  • Algorithms, tables, and charts
  • PubMed links
  • Custom notes and highlighting
  • Full-text search
  • Favorites for bookmarking
Features
Read full description

ABOUT GUIDE TO DIAGNOSTIC TESTS Pocket Guide to Diagnostic Tests, provides immediate, evidence-based information on the selection and interpretation of commonly used laboratory and electrocardiographic tests, diagnostic imaging, and therapeutic monitoring. Including more than 450 updated diagnostic tests, this mobile resource is ideal for answering questions encountered daily by physicians, nurses, students, and other healthcare professionals, such as: • Which test is best to diagnose or follow a patient’s condition? • What is the correct interpretation of an abnormal diagnostic test? • How do I collect the appropriate specimen or prepare the patient for testing? • Where can I find more information on this test in the medical literature? FEATURES • 450+ updated laboratory and diagnostic tests • Evidence-based recommendations • New and updated coverage of emerging and re-emerging pathogens and infectious agents • Extensive use of algorithms, tables, and charts • PubMed links directly to journal citations and available articles • Highlight and make custom notes within any entry • Full Text Search – find topics across from any entry • ‘Favorites’ for bookmarking important entries Editors: Diana Nicoll, MD, PhD, MPA; Chuanyi Mark Lu, MD; Stephen J. McPhee, MD Publisher: McGraw Hill Powered by: Unbound Medicine

Screenshots

Case Files4 screens
Guide to Diagnostic Tests4 screens

Verdict

The call

The clearest difference is review sentiment: Case Files at 33% against Guide to Diagnostic Tests's 0%. On price, update cadence, ads and in-app purchases 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 Guide to Diagnostic Tests sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Case Files ships an update every 19 months, Guide to Diagnostic Tests every 9 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Case Files versus Guide to Diagnostic Tests: the parameters behind the verdict, then further details
ParameterCase FilesGuide to Diagnostic Tests
PriceFreeFree
Rating—4.6 (35 ratings) — better
Positive reviews33.3% of reviews — better0.0% of reviews
Number of ratings—35 — better
Update frequencyEvery 19 monthsEvery 9 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size21 MB10 MB
Age rating12+17+
DeveloperExpanded AppsUnbound Medicine, Inc.

Customer experience

Case Files

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

Guide to Diagnostic Tests

All ratings35 ratings
Positive88.6%
Neutral5.7%
Negative5.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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
1 purchases

Guide to Diagnostic Tests

One-time1
  • Pocket Guide to Diagnostic Tests$54.99

Questions

Is Case Files free?
Case Files is free to download, with in-app purchases available.
Is Guide to Diagnostic Tests free?
Guide to Diagnostic Tests is free to download, with in-app purchases available.
Do Case Files or Guide to Diagnostic Tests have ads?
Neither Case Files nor Guide to Diagnostic Tests shows ads.
Which is updated more often, Case Files or Guide to Diagnostic Tests?
Case Files ships an update every 19 months, and Guide to Diagnostic Tests every 9 months. Most recently, Case Files was updated on October 23, 2026 and Guide to Diagnostic Tests on October 24, 2026.

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