# GasBook vs Airsat Group

The clearest difference is in-app purchases: Airsat Group at none against GasBook's 3. Airsat Group also leads on iOS requirement (15.1 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. GasBook sells 3 in-app purchases, starting at $5.99 per year. Airsat Group asks for nothing beyond the download.

GasBook ships an update every 5 weeks, Airsat Group every 3 weeks. The most recent releases landed on October 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | GasBook | Airsat Group |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/gasbook/id1628532525/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 65 MB | 50 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Nicholas Clinch](https://appshunter.io/developer/1628532527) | [Airsat Construction Ltd](https://appshunter.io/developer/1773239877) |

## What reviewers say

### GasBook

[App page](https://appshunter.io/ios/app/gasbook/id1628532525)

This app helps anaesthetic and ICM trainees log their training data for RCOA reports. It simplifies tracking TIVA and THRIVE usage with graphical summaries and detailed reports. Data can be backed up to iCloud and exported in Excel or PDF formats.

**Highlights:** RCOA training report data gathering, TIVA and THRIVE usage logging, Graphical specialty breakdown, Customizable quick entry options, Detailed report filtering, iCloud automatic backup, Excel and PDF export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $5.99 | per year |
| Buy Me A Coffee | $6.99 | one-time |
| Coffee For The Team | $9.99 | one-time |


### Airsat Group

[App page](https://appshunter.io/ios/app/airsat-group/id6736734297)

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

**In-app purchases:** none


## Frequently asked questions

### Is GasBook free?

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

### Is Airsat Group free?

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

### Do GasBook or Airsat Group have ads?

Neither GasBook nor Airsat Group shows ads.

### Which is updated more often, GasBook or Airsat Group?

GasBook ships an update every 5 weeks, and Airsat Group every 3 weeks. Most recently, GasBook was updated on October 27, 2026 and Airsat Group on September 26, 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.*