# Gas Blender Toolkit vs Caveradar

The clearest difference is price: Caveradar at Free against Gas Blender Toolkit's $2.99. Gas Blender Toolkit's advantage is rating (3.0 vs 1.0) and in-app purchases (none vs 1). On ratings volume, update cadence, ads and device support there is nothing between them.

Caveradar is free to download; Gas Blender Toolkit costs $2.99 up front. Caveradar sells 1 in-app purchase, starting at $1.99 per month. Gas Blender Toolkit asks for nothing beyond the download.

Gas Blender Toolkit holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Gas Blender Toolkit ships an update every 9 days, Caveradar every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gas Blender Toolkit | Caveradar |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/gas-blender-toolkit/id1467768490/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/caveradar/id6761065504/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Paid | **Freemium** |
| Size | 3 MB | 43 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Gurevich](https://appshunter.io/developer/1467768489) | [Harald Franzen](https://appshunter.io/developer/1887593106) |

## What reviewers say

### Gas Blender Toolkit

[App page](https://appshunter.io/ios/app/gas-blender-toolkit/id1467768490)

This comprehensive toolkit assists scuba divers in calculating and blending various gas mixtures like trimix, nitrox, and heliox. It offers features for both partial pressure and continuous blending, cost calculation, and utilizes ideal and real gas models for accuracy. Optimized for larger screens, it serves as a successor to a previous diving application.

**Highlights:** Partial pressure blending, Continuous blending, Trimix, nitrox, heliox calculations, Ideal and real gas models, Cost calculation, Top off from storage

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

**In-app purchases:** none


### Caveradar

[App page](https://appshunter.io/ios/app/caveradar/id6761065504)

Plan cave dives with detailed condition reports, weather context, and directions. Access key information offline and find local dive partners. Contribute reports to keep conditions updated for the community.

**Highlights:** Recent cave condition reports, Weather context for dive sites, Driving directions and access info, Offline caching of key data, Partner listings for instructors/centers, Fast, dropdown-only report contribution

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caveradar Premium | $1.99 | per month |


## Frequently asked questions

### Is Gas Blender Toolkit free?

Gas Blender Toolkit costs $2.99, with no in-app purchases.

### Is Caveradar free?

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

### Which has better reviews, Gas Blender Toolkit or Caveradar?

Gas Blender Toolkit is rated higher. Gas Blender Toolkit averages 3.0 out of 5 from 2 ratings, while Caveradar averages 1.0 from 1 ratings.

### Do Gas Blender Toolkit or Caveradar have ads?

Neither Gas Blender Toolkit nor Caveradar shows ads.

### Which is updated more often, Gas Blender Toolkit or Caveradar?

Gas Blender Toolkit ships an update every 9 days, and Caveradar every 5 days. Most recently, Gas Blender Toolkit was updated on November 3, 2026 and Caveradar on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*