# Mosby's Drug Reference vs ConnectRx

The clearest difference is in-app purchases: ConnectRx at none against Mosby's Drug Reference's 1. ConnectRx also leads on rating (5.0 vs 4.6) and update cadence (every 3 months vs every 9 months). Mosby's Drug Reference's advantage is ads (none vs shown) and ratings volume (235 vs 7). On price 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. ConnectRx asks for nothing beyond the download.

ConnectRx holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mosby's Drug Reference has 235 ratings behind it against 7, so its average is the more settled of the two.

Mosby's Drug Reference ships an update every 9 months, ConnectRx every 3 months. The most recent releases landed on September 27, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Mosby's Drug Reference | ConnectRx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (235 ratings)](https://appshunter.io/ios/app/mosbys-drug-reference/id959042883/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/connectrx/id1561046507/reviews)** |
| Number of ratings | **235** | 7 |
| Positive reviews | 31.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#195** | — |
| Size | 9 MB | 28 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [MEDICAL EDUCATION RESOURCES, LLC](https://appshunter.io/developer/1561046509) |

## What reviewers say

### Mosby's Drug Reference

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

**Currently charting:** #195 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 |


### ConnectRx

[App page](https://appshunter.io/ios/app/connectrx/id1561046507)

Access comprehensive drug information and advanced patient resources. This app provides a free service to physicians, leveraging data from First DataBank, a leader in electronic drug information. It is based on the National Drug Data File® (NDDF Plus) for clinically verifiable evidence.

**Highlights:** Up-to-date drug information, Advanced patient resources, Physician-focused, NDDF Plus database, Clinically verifiable evidence

**In-app purchases:** none


## Frequently asked questions

### Is Mosby's Drug Reference free?

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

### Is ConnectRx free?

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

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

ConnectRx is rated higher. Mosby's Drug Reference averages 4.6 out of 5 from 235 ratings, while ConnectRx averages 5.0 from 7 ratings.

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

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

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

Mosby's Drug Reference ships an update every 9 months, and ConnectRx every 3 months. Most recently, Mosby's Drug Reference was updated on September 27, 2026 and ConnectRx on June 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.*