Comparison

Lab Values vs Harriet Lane Handbook

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

Head to head
About

Lab Values

Access a comprehensive database of over 200 common normal lab values, presented in both International and Conventional Systems. This app offers a fast, simple search engine and is optimized for iPhone and iPad, making it a handy tool for healthcare professionals and students.

Highlights
  • Over 200 Normal Lab Values
  • International and Conventional Systems
  • Alphabetical Sorting
  • Multiple Categories
  • Fast Search Engine
  • iPhone/iPad Compatible
Features
Read full description

All healthcare professionals & students get at some point to measure and evaluate biological analysis results. Fully optimized for the iPhone screen, this app gives you a rapid and simple access to the most commonly used normal lab values. Functionalities: - Over 200 Normal Lab Values - Displayed in the International and Conventional System - Sorted Alphabetically - Multiples Categories - Very easy & fast to use search engine - Compatible iPhone/iPad - iOS 11 Compatibility Disclaimer: All values are provided for information only, these values may vary from an laboratory to another, they must be interpreted in their context by an appointed medical professional. The use of the present app does not substitute for a thorough verification of the available information with the correct authority or any official sources by the appointed medical professional. Consequently, the present app cannot be held responsible for any direct or indirect damages inflicted to any physical person.

About

Harriet Lane Handbook

This comprehensive pediatric resource offers an updated drug formulary, disease information, and management guidelines. It includes integrated calculators, visual exploration of medical literature, and the ability to bookmark favorite entries for quick access.

Highlights
  • Updated pediatric drug formulary
  • Hundreds of pediatric conditions
  • Integrated dosage calculators
  • Prime PubMed search
  • Management recommendations & immunization schedules
  • Highlighting and note-taking
  • Visual exploration of medical literature
Features
Currently charting
Read full description

** Your Go-To Pediatric Resource with Updated Drug Formulary ** **Exclusive Unbound Medicine bonus features include Prime PubMed and integrated calculators** HARRIET LANE HANDBOOK Written by pediatric residents from the Johns Hopkins University School of Medicine, Harriet Lane Handbook is the authoritative resource for interns, residents, and practitioners. Download this resource to review disease information or search figures, algorithms, tables, and charts. Check medication details in the new, fully-updated drug formulary which provides the standard in pediatric care. Quickly confirm diagnoses across a wide range of pediatric conditions and consult the most recent management recommendations, immunization schedules, procedures, and therapeutic guidelines specific to children. FEATURES • Updated details on hundreds of pediatric conditions in concise outline format. • Integrated dosage calculators • Renowned pediatric drug formulary with dosing, side effects, interactions, special considerations, and more • Hard to find images, charts, algorithms, and tables • Management recommendations, immunization schedules, and therapeutic guidelines • Coverage of dermatology treatments, eczema complications, and lead poisoning • Advanced search helps you find information quickly • Ability to highlight and make notes within any topic • Reference links to the medical literature through Prime PubMed • “Favorites” for bookmarking important entries Prime PubMed Search Quickly search journal articles from the full PubMed database on your smartphone and tablet. Results contain abstracts, citations, and links to available full text articles that can be read on device and shared with classmates and colleagues. Additionally, Prime contains Grapherence™, an exclusive way to visually explore interrelationships and relevance in the medical literature. Prime PubMed Journals Select and follow your favorite journals. Receive instant alerts when new articles publish. Editors: Camille C. Anderson, MD, Sunaina Kapoor, MD, MPH and Tiffany E Mark, MD Formulary updated by updated by Carlton K. K. Lee, PharmD, MPH Publisher: Elsevier Powered by: Unbound Medicine UPGRADE OPTION Add Davis’s Drug Guide to your Harriet Lane Handbook app. After purchase, you can easily add a 1-year subscription of the best-selling drug database trusted by thousands of healthcare professionals. Davis’s Drug Guide delivers frequently updated information on over 5,000 trade name and generic drugs. Each monograph, with its focus on safety, includes details on pharmacokinetics, dosing, side effects, interactions, assessment, and more. Your Davis’s Drug Guide subscription automatically renews annually unless auto-renew is turned off 24 hours prior to the conclusion of your current period. If you choose not to renew, you will continue to have access to the content, but will no longer receive updates. Your iTunes account will automatically be charged the current renewal rate ($39.99) within 24 hours prior to the end of the subscription period. This will ensure you receive all updates for the following year. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Unbound Privacy Policy: www.unboundmedicine.com/privacy Unbound Terms of Use: https://www.unboundmedicine.com/end_user_license_agreement

Screenshots

Lab Values4 screens
Harriet Lane Handbook4 screens

Verdict

The call

The clearest difference is price: Harriet Lane Handbook at Free against Lab Values's $0.99. Harriet Lane Handbook also leads on chart position (#191 vs unranked). Lab Values's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 7 months). On review sentiment, 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

Harriet Lane Handbook is free to download; Lab Values costs $0.99 up front. Harriet Lane Handbook sells 2 in-app purchases, starting at $39.99 per year. Lab Values asks for nothing beyond the download.

UpkeepUpdate frequency

Lab Values ships an update every 2 months, Harriet Lane Handbook every 7 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 5 level
Lab Values versus Harriet Lane Handbook: the parameters behind the verdict, then further details
ParameterLab ValuesHarriet Lane Handbook
Price$0.99Free — better
Rating—4.8 (601 ratings) — better
Positive reviews54.5% of reviews57.1% of reviews — better
Number of ratings—601 — better
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#191 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS8.0 — better15.0
Further details — not scored
Size3 MB15 MB
Age rating17+17+
DeveloperPierre Robinson DebutUnbound Medicine, Inc.

Customer experience

Lab Values

Written reviews77 reviews
Positive54.5%
Neutral11.7%
Negative33.8%

Harriet Lane Handbook

All ratings601 ratings
Positive95.0%
Neutral0.8%
Negative4.2%
Written reviews21 reviews
Positive57.1%
Neutral4.8%
Negative38.1%

Bugs and requests

Lab Values

Not enough reviews yet to summarise bugs or requests.

Harriet Lane Handbook

Reported bugs

11 issues
  • App won't open after iOS 11 update
  • Content inaccessible without wifi
  • Resolution fuzzy and ugly
  • Content orientation bizarre
  • Cannot open content
Show 6 more
  • Poorly formatted on iPhone
  • Tables and figures difficult to read
  • Search functionality awful
  • Doesn't fit entire screen on iPhone 5
  • Some diseases missing
  • Some fluxograms difficult to read

Requested features

4 requests
  • Sliders for ped dose calc
  • More search power for simpler terms
  • Dark mode option
  • Advanced analytics dashboard

In-app purchases

None

Lab Values

No in-app purchases

2 purchases

Harriet Lane Handbook

Subscriptions1
  • Davis's Drug Guide$39.991 Year
One-time1
  • Harriet Lane 23rd edition$59.99

Questions

Is Lab Values free?
Lab Values costs $0.99, with no in-app purchases.
Is Harriet Lane Handbook free?
Harriet Lane Handbook is free to download, with in-app purchases available.
Do Lab Values or Harriet Lane Handbook have ads?
Neither Lab Values nor Harriet Lane Handbook shows ads.
Which is updated more often, Lab Values or Harriet Lane Handbook?
Lab Values ships an update every 2 months, and Harriet Lane Handbook every 7 months. Most recently, Lab Values was updated on November 1, 2026 and Harriet Lane Handbook on November 5, 2026.

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