Comparison

Guide to Diagnostic Tests vs Dermatology Secrets Plus, 5/E

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

Head to head
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

About

Dermatology Secrets Plus, 5/E

Features
Read full description

For 30 years, the highly regarded Secrets Series® has provided students and practitioners in all areas of health care with concise, focused, and engaging resources for quick reference and exam review. Dermatology Secrets Plus, 5th Edition, by Drs. James E. Fitzpatrick and Joseph G. Morelli, features the Secrets' popular question-and-answer format that also includes lists, tables, and an informal tone - making reference and review quick, easy, and enjoyable. Key Features • Thorough updates throughout, including new chapters on disorders of the male genitalia and disorders of the oral mucosa. • Top 100 Secrets and Key Points boxes provide a fast overview of the secrets you must know for success in practice. • The proven Secrets® format gives you the most return for your study time--concise, easy to read, engaging, and highly effective. This app is very intuitive and easy to navigate, allowing you to browse the contents or search for topics. The powerful search tool gives you word suggestions that appear in the text as you type, so it is lightning fast and helps with spelling those long medical terms. The search tool also keeps a recent history of past search terms so you can go back to a previous search result very easily. You have the ability to create notes and bookmarks separately for text, images and tables to enhance your learning. You can also change the text size for easier reading. Your progress on each card is tracked so you can pick up right where you left off. After the app has been downloaded, no internet connection is needed to retrieve the content of the app. All of the text and images are available to you on your device anytime, anywhere, and lightning fast. This app is also automatically optimized for whatever size device you are currently using, either phone or tablet. Check out https://usatinemedia.com to learn more and watch a video demo of this app. This interactive app contains the full content of Dermatology Secrets Plus, 5th Edition by Elsevier. ISBN-13: 978-0323310291 ISBN-10: 9780323310291 Authors: James E. Fitzpatrick, MD, Professor, Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado Joseph G. Morelli, MD, Professor of Dermatology and Pediatrics, Department of Dermatology, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, Colorado Disclaimer: This app is intended for the education of healthcare professionals and not as a diagnostic and treatment reference for the general population. Developed by Usatine Media Richard P. Usatine, MD, Co-President, Professor of Family & Community Medicine, Professor of Dermatology and Cutaneous Surgery, University of Texas Health San Antonio Peter Erickson, Co-President, Lead Software Developer

Screenshots

Guide to Diagnostic Tests4 screens
Dermatology Secrets Plus, 5/E4 screens

Verdict

The call

The clearest difference is price: Guide to Diagnostic Tests at Free against Dermatology Secrets Plus, 5/E's $44.99. Dermatology Secrets Plus, 5/E's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 15.0). On update cadence, ads 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

Guide to Diagnostic Tests is free to download; Dermatology Secrets Plus, 5/E costs $44.99 up front. Guide to Diagnostic Tests sells 1 one-off in-app purchase. Dermatology Secrets Plus, 5/E asks for nothing beyond the download.

UpkeepUpdate frequency

Guide to Diagnostic Tests ships an update every 9 months, Dermatology Secrets Plus, 5/E every 17 months. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Guide to Diagnostic Tests versus Dermatology Secrets Plus, 5/E: the parameters behind the verdict, then further details
ParameterGuide to Diagnostic TestsDermatology Secrets Plus, 5/E
PriceFree — better$44.99
Rating4.6 (35 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings35 — better—
Update frequencyEvery 9 months — betterEvery 17 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.010.0 — better
Further details — not scored
Size10 MB187 MB
Age rating17+17+
DeveloperUnbound Medicine, Inc.Usatine & Erickson Media LLC

In-app purchases

1 purchases

Guide to Diagnostic Tests

One-time1
  • Pocket Guide to Diagnostic Tests$54.99
None

Dermatology Secrets Plus, 5/E

No in-app purchases

Questions

Is Guide to Diagnostic Tests free?
Guide to Diagnostic Tests is free to download, with in-app purchases available.
Is Dermatology Secrets Plus, 5/E free?
Dermatology Secrets Plus, 5/E costs $44.99, with no in-app purchases.
Do Guide to Diagnostic Tests or Dermatology Secrets Plus, 5/E have ads?
Neither Guide to Diagnostic Tests nor Dermatology Secrets Plus, 5/E shows ads.
Which is updated more often, Guide to Diagnostic Tests or Dermatology Secrets Plus, 5/E?
Guide to Diagnostic Tests ships an update every 9 months, and Dermatology Secrets Plus, 5/E every 17 months. Most recently, Guide to Diagnostic Tests was updated on October 27, 2026 and Dermatology Secrets Plus, 5/E on October 29, 2026.

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