# B vs Gas Blender

The clearest difference is rating: B at 5.0 against Gas Blender's 4.2. B also leads on in-app purchases (none vs 3). Gas Blender's advantage is ratings volume (6 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Gas Blender sells 3 in-app purchases, starting at $0.49 per month. B asks for nothing beyond the download.

B holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Gas Blender has 6 ratings behind it against 1, so its average is the more settled of the two.

B ships an update every 3 months, Gas Blender every 2 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | B | Gas Blender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/b-app/id1180977627/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/gas-blender/id1555767097/reviews) |
| Number of ratings | 1 | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 6 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BAUER KOMPRESSOREN GmbH](https://appshunter.io/developer/1180977626) | [Millennium Ltd](https://appshunter.io/developer/348691313) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-app/id1180977627)

Access compressor data remotely, utilize calculation tools for air delivery and filter life, and find global dealers. Stay updated with the latest news and watch informative videos about compressed air systems.

**Highlights:** Remote access to compressor status via B-CLOUD, Calculation tools for filter life, filling time, and air delivery, Worldwide dealer and service partner search, Latest news and updates on compressed air and compressors, Informative video clips on products and services

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

**In-app purchases:** none


### Gas Blender

[App page](https://appshunter.io/ios/app/gas-blender/id1555767097)

This app assists scuba divers in calculating and planning Nitrox and Trimix gas blends. It supports both imperial and metric units, offering calculations based on Ideal Gas and Van de Waals formulas. Users can also view the Maximum Operating Depths (MODs) for various factors and save planned mixes for future reference.

**Highlights:** Nitrox and Trimix gas blending, Imperial and metric unit support, Ideal Gas and Van de Waals formulas, MOD calculations (Narcosis, Density, O2 toxicity), Save planned gas mixes, User-selectable fill time

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.49 | per month |
| Annual | $2.99 | per year |
| Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is B free?

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

### Is Gas Blender free?

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

### Which has better reviews, B or Gas Blender?

B is rated higher. B averages 5.0 out of 5 from 1 ratings, while Gas Blender averages 4.2 from 6 ratings.

### Do B or Gas Blender have ads?

Neither B nor Gas Blender shows ads.

### Which is updated more often, B or Gas Blender?

B ships an update every 3 months, and Gas Blender every 2 months. Most recently, B was updated on October 24, 2026 and Gas Blender on October 20, 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.*