# PASS CCRN®! vs Master Anesthesia

The clearest difference is review sentiment: Master Anesthesia at 78% against PASS CCRN®!'s 20%. Master Anesthesia also leads on rating (4.9 vs 3.8) and ads (none vs shown). PASS CCRN®!'s advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PASS CCRN®! sells 6 in-app purchases, starting at $29.99 per month and Master Anesthesia sells 7 in-app purchases, starting at $69.99 per year. Whichever you choose, the download price is not the number that matters.

Master Anesthesia holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: Master Anesthesia has 2K ratings behind it against 75, so its average is the more settled of the two. Written reviews point the same way: 20% of PASS CCRN®!'s written reviews are positive against 78% of Master Anesthesia's.

PASS CCRN®! ships an update every 5 months, Master Anesthesia weekly. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PASS CCRN®! | Master Anesthesia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (75 ratings)](https://appshunter.io/ios/app/pass-ccrn/id1550079664/reviews) | **[4.9 (2K ratings)](https://appshunter.io/ios/app/master-anesthesia/id1550793078/reviews)** |
| Number of ratings | 75 | **2K** |
| Positive reviews | 20.0% of reviews | **78.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | — | **#110** |
| Size | 148 MB | 69 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Matthew Willis](https://appshunter.io/developer/1550793080) |

## What reviewers say

### PASS CCRN®!

[App page](https://appshunter.io/ios/app/pass-ccrn/id1550079664)

Prepare for the CCRN® Adult certification exam with comprehensive review, interactive learning activities, and over 1,000 practice questions. This app offers simulated exams and content updates reflecting the latest research and guidelines for critical care nursing.

**Highlights:** Comprehensive content review, Over 1,000 interactive practice questions, Study Mode with feedback, Practice Exam Mode for simulation, Interactive learning activities, Updated content reflecting latest guidelines

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PASS CCRN®! 1M Sub | $29.99 | per month |
| PASS CCRN®! 3M Sub | $39.99 | per 3 months |
| 25% Off-Limited Period Offer | $44.99 | per year |
| 20% Off-Limited Period Offer | $47.99 | per year |
| 15% Off-Limited Period Offer | $50.99 | per year |
| PASS CCRN®! 1Y Sub. | $59.99 | per year |


### Master Anesthesia

[App page](https://appshunter.io/ios/app/master-anesthesia/id1550793078)

**Currently charting:** #110 Top Grossing · Medical (US App Store)

This app provides anesthesia professionals with quick answers to common questions. It highlights anesthetic implications of diseases, surgical cases, and drugs, and includes a searchable acronym list and a comprehensive calculator for dosages, blood loss, and fluid management.

**Highlights:** Disease anesthetic implications, Surgical case anesthetic implications, Drug anesthetic implications, Searchable acronym list, Local anesthetic dosage calculator, Blood volume and loss calculator, Fluid and equipment calculations

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Master Anesthesia Contributor | $69.99 | per year |
| Full Access CE | $449.00 | per year |
| Module Unlock | $24.99 | one-time |
| Course Unlock | $99.00 | one-time |
| Master Anesthesia One Time | $99.99 | one-time |
| One-Time | $149.99 | one-time |
| Course Unlock | $449.00 | one-time |

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 🚀 Efficient and fast calculators
- 📚 Comprehensive information and resources
- 💡 Helpful for clinical practice and preparation
- 🔍 Useful reference for anesthesia providers

**What reviewers complain about**

- 🐛 Frequent crashes and freezes in the calculations section
- 🔒 Issues with purchase verification and login
- 💰 Concerns about the transition to a paid subscription model
- 🔋 High battery consumption and performance issues on older devices

**Reported bugs**

- Incorrect terminology and credentials on the starting screen
- Inconsistent behavior when accessing content after subscription changes

**Requested features**

- Offline access to content
- Apple Watch integration for the calculator
- More detailed and up-to-date information on procedures and conditions


## Frequently asked questions

### Is PASS CCRN®! free?

PASS CCRN®! is free to download, with in-app purchases available.

### Is Master Anesthesia free?

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

### Which has better reviews, PASS CCRN®! or Master Anesthesia?

Master Anesthesia is rated higher. PASS CCRN®! averages 3.8 out of 5 from 75 ratings, while Master Anesthesia averages 4.9 from 2K ratings.

### Do PASS CCRN®! or Master Anesthesia have ads?

PASS CCRN®! shows ads; Master Anesthesia does not.

### Which is updated more often, PASS CCRN®! or Master Anesthesia?

PASS CCRN®! ships an update every 5 months, and Master Anesthesia weekly. Most recently, PASS CCRN®! was updated on October 9, 2026 and Master Anesthesia 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.*