# Mosby's Drug Reference vs DrDrugs

The clearest difference is ads: Mosby's Drug Reference at none against DrDrugs's shown. Mosby's Drug Reference also leads on ratings volume (235 vs 33). DrDrugs's advantage is review sentiment (60% vs 32%) and update cadence (every 4 months vs every 9 months). On price, rating, in-app purchases and monetization model 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 and DrDrugs sells 6 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Mosby's Drug Reference against 4.5 for DrDrugs. That said, the two scores are not equally well evidenced: Mosby's Drug Reference has 235 ratings behind it against 33, so its average is the more settled of the two. Written reviews are what separate them: 32% of Mosby's Drug Reference's written reviews are positive against 60% of DrDrugs's.

Mosby's Drug Reference ships an update every 9 months, DrDrugs every 4 months. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Mosby's Drug Reference | DrDrugs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (235 ratings)](https://appshunter.io/ios/app/mosbys-drug-reference/id959042883/reviews)** | [4.5 (33 ratings)](https://appshunter.io/ios/app/drdrugs-guide-for-physicians/id1249280046/reviews) |
| Number of ratings | **235** | 33 |
| Positive reviews | 31.8% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 46 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### Mosby's Drug Reference

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

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 |


### DrDrugs

[App page](https://appshunter.io/ios/app/drdrugs-guide-for-physicians/id1249280046)

This medical reference app provides comprehensive drug information, including over 1,400 monographs and 700 dosing calculators. It focuses on safe practice and patient care, offering audio pronunciations and updated content for various patient populations and high-alert medications.

**Highlights:** 1,400+ drug monographs, 700+ built-in dosing calculators, Audio pronunciations for 1200+ drugs, NDC codes for 1300+ monographs, BEERS, REMS, and NDC indices, Pediatric, geriatric, and OB dosing, High Alert Medication identification

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drug Guide-Physicians 1/M Sub | $3.99 | per month |
| 25% off Limited Period Offer | $29.49 | per year |
| 20% off Limited Period Offer | $31.49 | per year |
| 15% off Limited Period offer | $33.49 | per year |
| Drug Guide-Physicians 1/Y Sub | $38.99 | per year |
| Drug Guide for Physicians,17Ed | $49.99 | one-time |


## Frequently asked questions

### Is Mosby's Drug Reference free?

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

### Is DrDrugs free?

DrDrugs is free to download, with in-app purchases available.

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

Mosby's Drug Reference is rated higher. Mosby's Drug Reference averages 4.6 out of 5 from 235 ratings, while DrDrugs averages 4.5 from 33 ratings.

### Do Mosby's Drug Reference or DrDrugs have ads?

DrDrugs shows ads; Mosby's Drug Reference does not.

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

Mosby's Drug Reference ships an update every 9 months, and DrDrugs every 4 months. Most recently, Mosby's Drug Reference was updated on September 24, 2026 and DrDrugs on September 21, 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.*