# RxCalc vs Micromedex

The clearest difference is price: Micromedex at Free against RxCalc's $2.99. Micromedex also leads on update cadence (every 2 months vs every 25 months) and ratings volume (35 vs 5). RxCalc's advantage is rating (4.6 vs 3.4) and review sentiment (53% vs 24%). On ads, in-app purchases and device support there is nothing between them.

Micromedex is free to download; RxCalc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RxCalc holds the better App Store score, 4.6 against 3.4. That said, the two scores are not equally well evidenced: Micromedex has 35 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 53% of RxCalc's written reviews are positive against 24% of Micromedex's.

RxCalc ships an update every 25 months, Micromedex every 2 months. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RxCalc | Micromedex |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/rxcalc/id321211290/reviews)** | [3.4 (35 ratings)](https://appshunter.io/ios/app/micromedex/id6471286555/reviews) |
| Number of ratings | 5 | **35** |
| Positive reviews | **53.3% of reviews** | 23.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#98** | — |
| Size | 1 MB | 30 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Rob Fahrni](https://appshunter.io/developer/321211293) | [Merative](https://appshunter.io/developer/1643925283) |

## What reviewers say

### RxCalc

[App page](https://appshunter.io/ios/app/rxcalc/id321211290)

**Currently charting:** #98 Top Paid · Medical (US App Store)

This medical app provides essential pharmacokinetic calculations for healthcare professionals. It offers a fast interface and comprehensive results to streamline dosing regimen design and patient-specific adjustments for medications like vancomycin and aminoglycosides.

**Highlights:** Pharmacokinetic calculations, Vancomycin dosing, Aminoglycoside dosing, Post-level adjustments, Fast interface, Comprehensive results

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

**In-app purchases:** none


### Micromedex

[App page](https://appshunter.io/ios/app/micromedex/id6471286555)

Access evidence-based clinical insights at the point of care with this comprehensive medical reference app. It provides daily updated drug information, pediatric and neonatal references, IV compatibility, and drug interaction checks, along with clinical calculators.

**Highlights:** Drug Reference Summary, NeoFax and Pediatric Reference, IV Compatibility, Drug Interactions, Clinical Calculators, Automated Content Updates

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

**In-app purchases:** none


## Frequently asked questions

### Is RxCalc free?

RxCalc costs $2.99, with no in-app purchases.

### Is Micromedex free?

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

### Which has better reviews, RxCalc or Micromedex?

RxCalc is rated higher. RxCalc averages 4.6 out of 5 from 5 ratings, while Micromedex averages 3.4 from 35 ratings.

### Do RxCalc or Micromedex have ads?

Neither RxCalc nor Micromedex shows ads.

### Which is updated more often, RxCalc or Micromedex?

RxCalc ships an update every 25 months, and Micromedex every 2 months. Most recently, RxCalc was updated on October 31, 2026 and Micromedex on October 24, 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.*