Comparison

Guide to Diagnostic Tests vs APRN and PA’s Complete Guide

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

APRN and PA’s Complete Guide

This prescribing reference offers guidance on drug therapy for advanced healthcare providers and students. It includes over 600 diagnoses with detailed pharmacotherapy regimens, lab monitoring, and patient teaching points. Content is updated digitally and accessible offline.

Highlights
  • Over 600 diagnoses with pharmacotherapy regimens
  • Detailed drug information including dosing and FDA pregnancy category
  • Lab values to monitor and patient teaching points
  • Alphabetical diagnosis and drug cross-reference
  • Digital updates and offline access
  • SmartSearch technology for quick information retrieval
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. Updated to deliver the most current standards, this is a unique prescribing reference for APRN students and advanced health care providers in all practice settings who need guidance on prescribing drugs for patients with acute, episodic, and chronic health problems Includes more than 30 new diagnoses with digital updates as needed! Concise, easy to read, and updated throughout, the APRN and PA’s Complete Guide to Prescribing Drug Therapy 2020 delivers pharmacotherapy regimens for more than 600 diagnoses—including over 30 that are new. Listed alphabetically by diagnosis, pharmacotherapy regimens include, for each diagnosis, drug choices listed by generic name, FDA pregnancy category, generic/over-the-counter availability, adult/pediatric dosing regimens, brand names, forms of dosage, and additives. Clinically useful information such as laboratory values to be monitored, patient teaching points, and safety information is interspersed throughout each diagnosis. Additional quick-access features include information presented in convenient table format and an alphabetical cross-reference index of drugs by generic and brand name, with FDA pregnancy category and controlled drug schedule (I, II, III, IV, V). Key Features: * Includes 31 new diagnoses totaling over 600 organized alphabetically * Serves as a quick-access prescribing reference for APRN and PA students and health care providers in all primary care settings * Presents drug information in condensed and summary form for ease of use * Within each diagnosis, drug choices are listed alphabetically by generic /trade name, FDA pregnancy category, adult/pediatric dosing, dose forms, and additives * Delivers guidance on lab values to be monitored, patient education points, and safety information * Includes 30 Appendices with ready access to key drug classifications, FDA Pregnancy Categories, US Schedule of Controlled Substances, Immunization Schedules, Contraceptive Guidance, categories Anti-Infectives, and more! * Offers brand/generic cross-reference 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 13: 9780826179333 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): Mari J. Wirfs, PhD, MN, RN, APRN, ANP-BC, FNP-BC, CNE Publisher: Springer Publishing Company

Screenshots

Guide to Diagnostic Tests4 screens
APRN and PA’s Complete Guide4 screens

Verdict

The call

The clearest difference is ads: Guide to Diagnostic Tests at none against APRN and PA’s Complete Guide's shown. APRN and PA’s Complete Guide's advantage is iOS requirement (13.0 vs 15.0). On price, rating, review sentiment and ratings volume 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. Guide to Diagnostic Tests sells 1 one-off in-app purchase and APRN and PA’s Complete Guide sells 2 in-app purchases, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Guide to Diagnostic Tests against 4.5 for APRN and PA’s Complete Guide. Both are backed by a comparable volume of ratings — 35 and 24 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Guide to Diagnostic Tests ships an update every 9 months, APRN and PA’s Complete Guide every 8 months. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Guide to Diagnostic Tests versus APRN and PA’s Complete Guide: the parameters behind the verdict, then further details
ParameterGuide to Diagnostic TestsAPRN and PA’s Complete Guide
PriceFreeFree
Rating4.6 (35 ratings) — better4.5 (24 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings35 — better24
Update frequencyEvery 9 monthsEvery 8 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size10 MB148 MB
Age rating17+17+
DeveloperUnbound Medicine, Inc.Skyscape Medpresso Inc

Customer experience

Guide to Diagnostic Tests

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

APRN and PA’s Complete Guide

All ratings24 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Guide to Diagnostic Tests

One-time1
  • Pocket Guide to Diagnostic Tests$54.99
2 purchases

APRN and PA’s Complete Guide

Subscriptions1
  • APRN & PA’s Complete Guide$39.991 Year
One-time1
  • APRN & PA’s Complete Guide$39.99

Questions

Is Guide to Diagnostic Tests free?
Guide to Diagnostic Tests is free to download, with in-app purchases available.
Is APRN and PA’s Complete Guide free?
APRN and PA’s Complete Guide is free to download, with in-app purchases available.
Which has better reviews, Guide to Diagnostic Tests or APRN and PA’s Complete Guide?
Guide to Diagnostic Tests is rated higher. Guide to Diagnostic Tests averages 4.6 out of 5 from 35 ratings, while APRN and PA’s Complete Guide averages 4.5 from 24 ratings.
Do Guide to Diagnostic Tests or APRN and PA’s Complete Guide have ads?
APRN and PA’s Complete Guide shows ads; Guide to Diagnostic Tests does not.
Which is updated more often, Guide to Diagnostic Tests or APRN and PA’s Complete Guide?
Guide to Diagnostic Tests ships an update every 9 months, and APRN and PA’s Complete Guide every 8 months. Most recently, Guide to Diagnostic Tests was updated on October 22, 2026 and APRN and PA’s Complete Guide on October 16, 2026.

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