# Master Anesthesia vs EXPAREL® NOW

The clearest difference is in-app purchases: EXPAREL® NOW at none against Master Anesthesia's 7. EXPAREL® NOW also leads on review sentiment (100% vs 78%). Master Anesthesia's advantage is update cadence (weekly vs every 2 months) and ratings volume (2K vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Master Anesthesia sells 7 in-app purchases, starting at $69.99 per year. EXPAREL® NOW asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Master Anesthesia against 5.0 for EXPAREL® NOW. That said, the two scores are not equally well evidenced: Master Anesthesia has 2K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 78% of Master Anesthesia's written reviews are positive against 100% of EXPAREL® NOW's.

Master Anesthesia ships an update weekly, EXPAREL® NOW every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Master Anesthesia | EXPAREL® NOW |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (2K ratings)](https://appshunter.io/ios/app/master-anesthesia/id1550793078/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/exparel-now/id1590877767/reviews)** |
| Number of ratings | **2K** | 1 |
| Positive reviews | 78.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Subscription | **Free** |
| Best chart rank | **#139** | — |
| Size | 66 MB | 48 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Matthew Willis](https://appshunter.io/developer/1550793080) | [Pacira Pharmaceuticals, Inc.](https://appshunter.io/developer/1444899514) |

## What reviewers say

### Master Anesthesia

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

**Currently charting:** #139 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


### EXPAREL® NOW

[App page](https://appshunter.io/ios/app/exparel-now/id1590877767)

This medical resource app provides quick access to guidance on using EXPAREL in surgical procedures. It offers information on regional field blocks and nerve blocks, including dosing, neuroanatomy, and probe positioning with ultrasound imagery and video. Content is available offline.

**Highlights:** EXPAREL usage guidance, Dosing information, Neuroanatomy and probe positioning, Ultrasound imagery and video, Offline content access, Administrative case reports

**In-app purchases:** none


## Frequently asked questions

### Is Master Anesthesia free?

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

### Is EXPAREL® NOW free?

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

### Which has better reviews, Master Anesthesia or EXPAREL® NOW?

EXPAREL® NOW is rated higher. Master Anesthesia averages 4.9 out of 5 from 2K ratings, while EXPAREL® NOW averages 5.0 from 1 ratings.

### Do Master Anesthesia or EXPAREL® NOW have ads?

Neither Master Anesthesia nor EXPAREL® NOW shows ads.

### Which is updated more often, Master Anesthesia or EXPAREL® NOW?

Master Anesthesia ships an update weekly, and EXPAREL® NOW every 2 months. Most recently, Master Anesthesia was updated on October 27, 2026 and EXPAREL® NOW 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.*