# CCR vs Gas Blender

The clearest difference is in-app purchases: CCR at none against Gas Blender's 3. Gas Blender's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

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

CCR ships an update monthly, Gas Blender every 2 months. The most recent releases landed on October 18, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CCR | Gas Blender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (6 ratings)](https://appshunter.io/ios/app/gas-blender/id1555767097/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 6 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Ali Pervaiz](https://appshunter.io/developer/1523676882) | [Millennium Ltd](https://appshunter.io/developer/348691313) |

## What reviewers say

### CCR

[App page](https://appshunter.io/ios/app/ccr/id1523676880)

**Features:** 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 CCR free?

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

### Is Gas Blender free?

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

### Do CCR or Gas Blender have ads?

Neither CCR nor Gas Blender shows ads.

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

CCR ships an update monthly, and Gas Blender every 2 months. Most recently, CCR was updated on October 18, 2026 and Gas Blender on November 3, 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.*