Comparison

RN’s Study Guide vs Davis Lab and Diagnostic Tests

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

Head to head
About

RN’s Study Guide

This app condenses essential nursing knowledge into manageable basics for students and professionals. It simplifies complex health problems with practical tips, medical terms, and precautions. Access comprehensive content offline after initial download.

Highlights
  • Condensed nursing knowledge
  • Simplified health problem explanations
  • Nursing tips and precautions
  • Medical terms and anatomy
  • Offline content access
  • SmartSearch technology
Features
Read full description

"Try before you buy" - Download the FREE App, which includes sample content. In-App purchase required to unlock all content. RN's Study Guide Nursing Essentials: Unlike other texts, it condenses vast amounts of knowledge into manageable basics RNís Study Guide: Nursing Essentials is a unique and user-friendly resource that presents students with need to know information to help them thrive on their path to becoming a nurse. Unlike other texts, it condenses vast amounts of knowledge into manageable basics to help nursing students and professionals understand difficult material, prepare for rigorous tests, and provide optimal care for patients and their families. With a concise and practical approach, RNís Study Guide: Nursing Essentials offers simplified introductions to the major health problems of different systems with important nursing tips and explanations. Also included are useful medical terms, anatomic pointers, points to consider, and precautions. Chapter 1 Hematologic & Immunologic Issues Chapter 2 Cardiovascular Issues Chapter 3 Respiratory Issues Chapter 4 Neurologic Issues Chapter 5 Sensory Issues Chapter 6 Endocrine Issues Chapter 7 Digestive Issues Chapter 8 Genitourinary Issues Chapter 9 Musculoskeletal Issues Chapter 10 Skin Issues 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 10: 1284115976 Content licensed from printed ISBN 13: 9781284115970 If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-3000 Privacy Policy - https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions - https://www.skyscape.com/terms-of-service/licenseagreement.aspx Author(s): Vicky Li, RN, BA Publisher: Jones and Bartlett Publishers,

About

Davis Lab and Diagnostic Tests

This medical reference app provides comprehensive information on lab and diagnostic tests. It helps users understand test procedures, interpret results, and offer quality patient care with detailed nursing implications, common uses, and interfering factors.

Highlights
  • Alphabetical listing of tests
  • Searchable by abbreviation, synonym, disease
  • Potential Nursing Problems tables
  • Common Use explanations
  • Pre-test, intra-test, post-test coverage
  • Patient safety and teaching information
  • Reference ranges in conventional and SI units
Features
Read full description

Nursing-focused and easy-to-read, this manual delivers all the information you need to understand how tests work, interpret their results, and provide quality patient care — pre-test, intra-test, and post-test. Tests and procedures are listed in alphabetical order by their complete name for quick reference. The search feature allows fast searches by abbreviation, synonym, disease/disorder, specimen type, or test classification. Key Features • Fast Find: Lab and Dx—The complete Lab & Diagnostic Test database • Searchable • Mobile and tablet friendly • “Potential Nursing Problems” tables within many studies that present problems, signs and symptoms, and interventions related to the study • ‘Common Use’ for each study to provide an at-a-glance description of what the test is for, presented in everyday language that patients will understand • Studies that focus on what you need to do before, during, and after each laboratory and diagnostic test, including… • Patient Teaching • Detailed coverage of patient safety • “Sensitivity to Social and Cultural Issues” and “Nutritional Considerations,” where appropriate • Diagnostic imaging studies with explanations of the reasons for the test result • Pathophysiology information that explains why a lab test result is increased or decreased • Reference Ranges that are expressed in both conventional and SI units (with the SI unit conversion factor) and include age- and gender-specific variations when indicated and normal variations due to cultural considerations • Interfering Factors, including food, natural products, timing of test, handling of specimen, underlying patient conditions, and drugs that may interfere with the results of the test • Unique coverage of laboratory and diagnostic tests for subspecialties, such as maternity, therapeutic drug monitoring, nutrition and sensory Try before you buy with a 14-day FREE trial. After that it's only $38.99/year for access and continuous content updates. Privacy Policy - https://www.fadavis.com/privacypolicy Terms of Service - https://www.fadavis.com/Termsofuse

Screenshots

RN’s Study Guide4 screens
Davis Lab and Diagnostic Tests4 screens

Verdict

The call

The clearest difference is ads: Davis Lab and Diagnostic Tests at none against RN’s Study Guide's shown. Davis Lab and Diagnostic Tests also leads on rating (5.0 vs 4.8). RN’s Study Guide's advantage is update cadence (every 6 months vs every 13 months) and iOS requirement (13.0 vs 15.6). On price, ratings volume, in-app purchases and monetization model 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. RN’s Study Guide sells 1 one-off in-app purchase and Davis Lab and Diagnostic Tests sells 1 in-app purchase, starting at $38.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Davis Lab and Diagnostic Tests holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

RN’s Study Guide ships an update every 6 months, Davis Lab and Diagnostic Tests every 13 months. The most recent releases landed on June 5, 2026 and August 24, 2026 respectively.

Scorecard4 real differences · 5 level
RN’s Study Guide versus Davis Lab and Diagnostic Tests: the parameters behind the verdict, then further details
ParameterRN’s Study GuideDavis Lab and Diagnostic Tests
PriceFreeFree
Rating4.8 (4 ratings)5.0 (2 ratings) — better
Number of ratings4 — better2
Update frequencyEvery 6 months — betterEvery 13 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size46 MB474 MB
Age rating17+17+
DeveloperSkyscape Medpresso IncAtmosphere Apps, Inc.

Customer experience

RN’s Study Guide

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Davis Lab and Diagnostic Tests

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

RN’s Study Guide

One-time1
  • RN’s Study Guide$29.99
1 purchases

Davis Lab and Diagnostic Tests

Subscriptions1
  • Annual Subscription14 Days trial$38.991 Year

Questions

Is RN’s Study Guide free?
RN’s Study Guide is free to download, with in-app purchases available.
Is Davis Lab and Diagnostic Tests free?
Davis Lab and Diagnostic Tests is free to download, with in-app purchases available.
Which has better reviews, RN’s Study Guide or Davis Lab and Diagnostic Tests?
Davis Lab and Diagnostic Tests is rated higher. RN’s Study Guide averages 4.8 out of 5 from 4 ratings, while Davis Lab and Diagnostic Tests averages 5.0 from 2 ratings.
Do RN’s Study Guide or Davis Lab and Diagnostic Tests have ads?
RN’s Study Guide shows ads; Davis Lab and Diagnostic Tests does not.
Which is updated more often, RN’s Study Guide or Davis Lab and Diagnostic Tests?
RN’s Study Guide ships an update every 6 months, and Davis Lab and Diagnostic Tests every 13 months. Most recently, RN’s Study Guide was updated on June 5, 2026 and Davis Lab and Diagnostic Tests on August 24, 2026.

Other comparisons