# Synesthesia CRNA vs Anesthesia Gas Guide

The clearest difference is price: Synesthesia CRNA at Free against Anesthesia Gas Guide's $19.99. Synesthesia CRNA also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). Anesthesia Gas Guide's advantage is update cadence (every 9 days vs every 6 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Synesthesia CRNA is free to download; Anesthesia Gas Guide costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Synesthesia CRNA against 5.0 for Anesthesia Gas Guide. Both are backed by a comparable volume of ratings — 5 and 10 respectively.

Synesthesia CRNA ships an update every 6 months, Anesthesia Gas Guide every 9 days. The most recent releases landed on July 20, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Synesthesia CRNA | Anesthesia Gas Guide |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/synesthesia-crna/id6504415249/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/anesthesia-gas-guide/id6749691922/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | **Free** | Paid |
| Size | 22 MB | 9 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FortyAU](https://appshunter.io/developer/495758976) | [Precision Anesthesia Consultants LLC](https://appshunter.io/developer/1831756383) |

## What reviewers say

### Synesthesia CRNA

[App page](https://appshunter.io/ios/app/synesthesia-crna/id6504415249)

This application assists CRNA students in managing their educational journey. It provides tools for organizing courses, tracking evaluations, creating care plans, logging cases, and scheduling facility rotations. Streamline your anesthesia training and stay organized with this comprehensive educational software.

**Highlights:** Course Management, Evaluation Tracking, Care Plan Creation, Case Log Management, Facility Scheduling, Intuitive Interface

**In-app purchases:** none


### Anesthesia Gas Guide

[App page](https://appshunter.io/ios/app/anesthesia-gas-guide/id6749691922)

An educational reference for anesthesia providers, offering concise information on anesthetic techniques, drug summaries, and perioperative considerations. Designed for academic review and educational use.

**Highlights:** Anesthetic techniques, Drug summaries, Perioperative considerations, Concise information, Organized reference

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

**In-app purchases:** none


## Frequently asked questions

### Is Synesthesia CRNA free?

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

### Is Anesthesia Gas Guide free?

Anesthesia Gas Guide costs $19.99, with no in-app purchases.

### Which has better reviews, Synesthesia CRNA or Anesthesia Gas Guide?

Synesthesia CRNA and Anesthesia Gas Guide are both rated 5.0 out of 5 on the App Store, from 5 and 10 ratings respectively.

### Do Synesthesia CRNA or Anesthesia Gas Guide have ads?

Neither Synesthesia CRNA nor Anesthesia Gas Guide shows ads.

### Which is updated more often, Synesthesia CRNA or Anesthesia Gas Guide?

Synesthesia CRNA ships an update every 6 months, and Anesthesia Gas Guide every 9 days. Most recently, Synesthesia CRNA was updated on July 20, 2026 and Anesthesia Gas Guide on September 11, 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.*