# PEPID® vs Mosby's Drug Reference

The clearest difference is in-app purchases: PEPID® at none against Mosby's Drug Reference's 1. PEPID® also leads on update cadence (every 5 weeks vs every 9 months) and ratings volume (2.9K vs 235). Mosby's Drug Reference's advantage is chart position (#182 vs unranked) and device support (4 vs 2). On price, rating, ads and iOS requirement there is nothing between them.

Both are free to download. Mosby's Drug Reference sells 1 in-app purchase, starting at $45.99 per year. PEPID® asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for PEPID® against 4.6 for Mosby's Drug Reference. That said, the two scores are not equally well evidenced: PEPID® has 2.9K ratings behind it against 235, so its average is the more settled of the two. Written reviews are what separate them: 45% of PEPID®'s written reviews are positive against 32% of Mosby's Drug Reference's.

PEPID® ships an update every 5 weeks, Mosby's Drug Reference every 9 months. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PEPID® | Mosby's Drug Reference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.9K ratings)](https://appshunter.io/ios/app/pepid/id955554418/reviews)** | [4.6 (235 ratings)](https://appshunter.io/ios/app/mosbys-drug-reference/id959042883/reviews) |
| Number of ratings | **2.9K** | 235 |
| Positive reviews | **45.1% of reviews** | 31.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 9 months |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#182** |
| Size | 39 MB | 9 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [PEPID, LLC](https://appshunter.io/developer/306091996) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### PEPID®

[App page](https://appshunter.io/ios/app/pepid/id955554418)

Provides healthcare professionals with essential tools for patient care, including a vast drug database, medical calculators, and visual aids. Content is regularly updated and clinically independent, offering reliable information for various medical roles.

**Highlights:** Largest drug database, Medical calculators, High-res pill photos, Clinical illustrations, Regularly updated information, Independent clinical content

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick information
- 🔒 Trustworthy content
- 👍 Useful for daily work
- 👍 Comprehensive database
- 👍 User-friendly

**What reviewers complain about**

- 🐛 App crashes/won't open
- 🐛 Outdated/missing content
- 🐛 Poor optimization for newer devices
- 💰 Expensive subscription
- 👎 Difficult to navigate

**Reported bugs**

- App crashes on login or launch
- Content fails to download
- Incompatible with newer iOS versions

**Requested features**

- Improved search functionality
- More calculators and tools
- Automatic content updates
- Ability to use on multiple devices with single subscription


### Mosby's Drug Reference

[App page](https://appshunter.io/ios/app/mosbys-drug-reference/id959042883)

**Currently charting:** #182 Top Grossing · Medical (US App Store)

This app provides healthcare professionals with comprehensive drug information, including actions, usage, dosage, interactions, and side effects. It emphasizes patient safety with Black Box Warnings, Safety Alerts, and information on life-threatening side effects. Features include custom notes, highlights, and quick search functionality.

**Highlights:** Over 5,000 drug listings, Black Box Warnings and Safety Alerts, Drug action, usage, dosage, interactions, side effects, Custom notes and highlights, Full text search, Appendix of recent FDA-approvals

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mosby's Drug Reference | $45.99 | per year |


## Frequently asked questions

### Is PEPID® free?

PEPID® is free to download, with no in-app purchases.

### Is Mosby's Drug Reference free?

Mosby's Drug Reference is free to download, with in-app purchases available.

### Which has better reviews, PEPID® or Mosby's Drug Reference?

PEPID® is rated higher. PEPID® averages 4.7 out of 5 from 2.9K ratings, while Mosby's Drug Reference averages 4.6 from 235 ratings.

### Do PEPID® or Mosby's Drug Reference have ads?

Neither PEPID® nor Mosby's Drug Reference shows ads.

### Which is updated more often, PEPID® or Mosby's Drug Reference?

PEPID® ships an update every 5 weeks, and Mosby's Drug Reference every 9 months. Most recently, PEPID® was updated on October 10, 2026 and Mosby's Drug Reference on October 15, 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.*