# Merck Manual Professional vs Bates' Pocket Guide

Merck Manual Professional and Bates' Pocket Guide both sit at 4.8 stars, but that hides the real split: 92% of Merck Manual Professional's written reviews are positive against 41% of Bates' Pocket Guide's. Merck Manual Professional also leads on in-app purchases (none vs 1) and update cadence (every 4 months vs every 11 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. Bates' Pocket Guide sells 1 one-off in-app purchase. Merck Manual Professional asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Merck Manual Professional against 4.8 for Bates' Pocket Guide. Both are backed by a comparable volume of ratings — 1.1K and 304 respectively. Written reviews are what separate them: 92% of Merck Manual Professional's written reviews are positive against 41% of Bates' Pocket Guide's.

Merck Manual Professional ships an update every 4 months, Bates' Pocket Guide every 11 months. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Merck Manual Professional | Bates' Pocket Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.1K ratings)](https://appshunter.io/ios/app/merck-manual-professional/id331016312/reviews) | **[4.8 (304 ratings)](https://appshunter.io/ios/app/bates-pocket-guide/id650795652/reviews)** |
| Number of ratings | **1.1K** | 304 |
| Positive reviews | **91.7% of reviews** | 40.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 196 MB | 10 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [Merck & Co Inc](https://appshunter.io/developer/334253467) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### Merck Manual Professional

[App page](https://appshunter.io/ios/app/merck-manual-professional/id331016312)

This medical reference app offers healthcare practitioners and students clear, practical explanations for thousands of conditions across major medical and surgical specialties. It includes photos, illustrations, instructional videos, drug information, quizzes, and case simulations to stay updated with the latest clinical information.

**Highlights:** Thousands of medical topics, Photos and illustrations, Instructional 'How to' videos, Drug reference information, Knowledge quizzes, Interactive case simulations

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💯 Excellent medical resource
- 🔍 Comprehensive and up-to-date information
- 🎓 Valuable for medical professionals and students
- 🔍 Reliable and trusted source
- 🖥️ Great offline accessibility

**What reviewers complain about**

- 🐛 App crashes and freezes
- 🔍 Lack of search functionality
- 🔍 Outdated or missing content
- 🔍 Difficult navigation and organization

**Reported bugs**

- App crashes when searching for certain conditions
- Images and videos not loading properly
- Offline mode not working as expected

**Requested features**

- Add personalization features like notes, highlights, and flashcards
- Improve search functionality and relevance
- Provide more frequent content updates
- Enhance app stability and performance


### Bates' Pocket Guide

[App page](https://appshunter.io/ios/app/bates-pocket-guide/id650795652)

This app provides essential information for obtaining health histories and conducting physical exams. It features step-by-step techniques, updated images, and differential diagnoses for quick and accurate interpretation of findings. Ideal for students and professionals needing a fast reference.

**Highlights:** Over 130 detailed topics, Step-by-step instructions, Updated photographs and illustrations, Two-column layout, New Algorithms for symptom approaches, Differential diagnoses, Highlighting and note-taking, Advanced search

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bates' Pocket Guide 9th ed. | $69.99 | one-time |

**What reviewers like**

- 👍 Reliable reference
- 🖼️ Helpful pictures for diagnosis
- 📚 Good for quick reference
- 💡 Easy to understand and logical format
- 🎯 Useful for clinicals and easy to maneuver

**What reviewers complain about**

- 💰 Overpriced app
- 🔄 Outdated software
- 🖱️ Not user-friendly navigation
- 💸 Repeated payments required
- ❌ Incorrect information/algorithms

**Reported bugs**

- Sectional information is wrong
- Topics do not correlate to information
- Asterisk information is incorrect
- App information needs updating and reviewing
- Software is glitchy

**Requested features**

- Update and review app information for accuracy
- Improve content layout and navigation
- Offer better preview options before purchase
- Provide discounts for existing textbook/resource owners
- Clarify product offerings to avoid buyer confusion


## Frequently asked questions

### Is Merck Manual Professional free?

Merck Manual Professional is free to download, with no in-app purchases.

### Is Bates' Pocket Guide free?

Bates' Pocket Guide is free to download, with in-app purchases available.

### Which has better reviews, Merck Manual Professional or Bates' Pocket Guide?

Bates' Pocket Guide is rated higher. Merck Manual Professional averages 4.8 out of 5 from 1.1K ratings, while Bates' Pocket Guide averages 4.8 from 304 ratings.

### Do Merck Manual Professional or Bates' Pocket Guide have ads?

Neither Merck Manual Professional nor Bates' Pocket Guide shows ads.

### Which is updated more often, Merck Manual Professional or Bates' Pocket Guide?

Merck Manual Professional ships an update every 4 months, and Bates' Pocket Guide every 11 months. Most recently, Merck Manual Professional was updated on November 6, 2026 and Bates' Pocket Guide on November 9, 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.*