# Anesthesia Central vs GasWork.com AA

The clearest difference is in-app purchases: GasWork.com AA at none against Anesthesia Central's 2. GasWork.com AA also leads on rating (5.0 vs 4.6). Anesthesia Central's advantage is update cadence (every 9 months vs every 44 months) and ratings volume (104 vs 8). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Anesthesia Central sells 2 in-app purchases, starting at $99.99 per year. GasWork.com AA asks for nothing beyond the download.

GasWork.com AA holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Anesthesia Central has 104 ratings behind it against 8, so its average is the more settled of the two.

Anesthesia Central ships an update every 9 months, GasWork.com AA every 44 months. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Anesthesia Central | GasWork.com AA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (104 ratings)](https://appshunter.io/ios/app/anesthesia-central/id347656772/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/gasworkcom-aa/id1439892338/reviews)** |
| Number of ratings | **104** | 8 |
| Positive reviews | 74.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 44 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [GasWork.com, Inc.](https://appshunter.io/developer/1161352848) |

## What reviewers say

### Anesthesia Central

[App page](https://appshunter.io/ios/app/anesthesia-central/id347656772)

This app provides anesthesiologists and critical care specialists with essential information for patient care before, during, and after surgery. It includes disease, drug, test, and procedure details, along with access to the PubMed database for journal articles.

**Highlights:** Disease, drug, test, and procedure information, Access to PubMed database, MGH Clinical Anesthesia Procedures, Davis's Drug Guide, Pocket ICU Management, Pocket Guide to Diagnostic Tests, Integrated calculators

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Anesthesia Central Renewal | $99.99 | per year |
| Anesthesia Central | $169.99 | one-time |


### GasWork.com AA

[App page](https://appshunter.io/ios/app/gasworkcom-aa/id1439892338)

This app connects Anesthesiologist Assistants with job opportunities. It mirrors the website's listings, allowing users to view, mark as read, and save job posts. Users can also search by state or position duration and inquire about roles.

**Highlights:** View Anesthesiologist Assistant job opportunities, Mark jobs as read, Save job posts for later, Search jobs by state, Search jobs by position duration, Inquire about jobs via email or web

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Anesthesia Central free?

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

### Is GasWork.com AA free?

GasWork.com AA is free to download, with no in-app purchases.

### Which has better reviews, Anesthesia Central or GasWork.com AA?

GasWork.com AA is rated higher. Anesthesia Central averages 4.6 out of 5 from 104 ratings, while GasWork.com AA averages 5.0 from 8 ratings.

### Do Anesthesia Central or GasWork.com AA have ads?

Neither Anesthesia Central nor GasWork.com AA shows ads.

### Which is updated more often, Anesthesia Central or GasWork.com AA?

Anesthesia Central ships an update every 9 months, and GasWork.com AA every 44 months. Most recently, Anesthesia Central was updated on October 11, 2026 and GasWork.com AA on October 12, 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.*