# Lab Values vs Harriet Lane Handbook

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.

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.

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.

## The numbers

| Metric | Lab Values | Harriet Lane Handbook |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (601 ratings)](https://appshunter.io/ios/app/harriet-lane-handbook/id458365685/reviews)** |
| Number of ratings | — | **601** |
| Positive reviews | 54.5% of reviews | **57.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#191** |
| Size | 3 MB | 15 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [Pierre Robinson Debut](https://appshunter.io/developer/427255982) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### Lab Values

[App page](https://appshunter.io/ios/app/lab-values/id427255979)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Harriet Lane Handbook

[App page](https://appshunter.io/ios/app/harriet-lane-handbook/id458365685)

**Currently charting:** #191 Top Grossing · Medical (US App Store)

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:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Davis's Drug Guide | $39.99 | per year |
| Harriet Lane 23rd edition | $59.99 | one-time |

**What reviewers like**

- 👍 Great source of information
- 👍 Handy to have on phone
- 👍 Use daily
- 👍 Love saving favorites
- 👍 Formulary and expanded drug search

**What reviewers complain about**

- 👎 Lousy liquid po dose calc
- 👎 Lacks neonate sodium levels
- 👎 No pediatrics dosage calculator
- 👎 Still not a finished product
- 👎 Missing reference values

**Reported bugs**

- App won't open after iOS 11 update
- Content inaccessible without wifi
- Resolution fuzzy and ugly
- Content orientation bizarre
- Cannot open content

**Requested features**

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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*