Comparison

Guide to Diagnostic Tests vs ABOHNS

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

ABOHNS

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The Otolaryngology Training Examination (OTE) is a closed-book, proctored, timed examination which is offered once a year. Any resident, practicing otolaryngologist-head and neck surgeon, or other interested physician may register for the OTE. Purpose The OTE provides an assessment of current knowledge in all areas of otolaryngology-head and neck surgery. Exam results identify strengths and weaknesses. Exam scores are confidential for practitioners; resident’s scores are reported to training program directors. Residents and their program directors use the OTE to establish a baseline of specialty knowledge at the beginning of training, and to monitor changes in that knowledge over time. It is inappropriate for program directors to use this measure of resident performance as the sole form of assessment when evaluating residents for advancement. Rather, it is appropriate for program directors to use the aggregate performance of their residents when evaluating the strengths and weaknesses of their educational program.

Screenshots

Guide to Diagnostic Tests4 screens

Verdict

The call

The clearest difference is in-app purchases: ABOHNS at none against Guide to Diagnostic Tests's 1. ABOHNS also leads on iOS requirement (9.3 vs 15.0). Guide to Diagnostic Tests's advantage is update cadence (every 9 months vs every 47 months) and device support (3 vs 1). On price and ads 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. ABOHNS asks for nothing beyond the download.

UpkeepUpdate frequency

Guide to Diagnostic Tests ships an update every 9 months, ABOHNS every 47 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Guide to Diagnostic Tests versus ABOHNS: the parameters behind the verdict, then further details
ParameterGuide to Diagnostic TestsABOHNS
PriceFreeFree
Rating4.6 (35 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings35 — better—
Update frequencyEvery 9 months — betterEvery 47 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.09.3 — better
Further details — not scored
Size10 MB5 MB
Age rating17+17+
DeveloperUnbound Medicine, Inc.Internet Testing Systems (ITS)

In-app purchases

1 purchases

Guide to Diagnostic Tests

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

ABOHNS

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 ABOHNS free?
ABOHNS is free to download, with no in-app purchases.
Do Guide to Diagnostic Tests or ABOHNS have ads?
Neither Guide to Diagnostic Tests nor ABOHNS shows ads.
Which is updated more often, Guide to Diagnostic Tests or ABOHNS?
Guide to Diagnostic Tests ships an update every 9 months, and ABOHNS every 47 months. Most recently, Guide to Diagnostic Tests was updated on October 24, 2026 and ABOHNS on October 16, 2026.

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