# Gas Blender vs Dive World

The clearest difference is rating: Dive World at 5.0 against Gas Blender's 4.0. Dive World also leads on update cadence (fortnightly vs every 2 months). Gas Blender's advantage is ratings volume (5 vs 1) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Gas Blender sells 3 in-app purchases, starting at $0.49 per month and Dive World sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Dive World holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Gas Blender has 5 ratings behind it against 1, so its average is the more settled of the two.

Gas Blender ships an update every 2 months, Dive World fortnightly. The most recent releases landed on August 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Gas Blender | Dive World |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/gas-blender/id1555767097/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dive-world/id6757686877/reviews)** |
| Number of ratings | **5** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 327 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Millennium Ltd](https://appshunter.io/developer/348691313) | [洋 张](https://appshunter.io/developer/1868220458) |

## What reviewers say

### 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 |


### Dive World

[App page](https://appshunter.io/ios/app/dive-world/id6757686877)

This app is an all-in-one platform for diving enthusiasts to record dives, connect with other divers, and enhance underwater photos. It offers professional tools to support safe diving experiences for all levels of divers.

**Highlights:** Dedicated dive log, Find dive buddies, AI underwater photo color correction, Professional diving tools, Connect with global divers

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员-连续包月 | $5.99 | per month |
| 年度会员-连续包年 | $44.99 | per year |


## Frequently asked questions

### Is Gas Blender free?

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

### Is Dive World free?

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

### Which has better reviews, Gas Blender or Dive World?

Dive World is rated higher. Gas Blender averages 4.0 out of 5 from 5 ratings, while Dive World averages 5.0 from 1 ratings.

### Do Gas Blender or Dive World have ads?

Neither Gas Blender nor Dive World shows ads.

### Which is updated more often, Gas Blender or Dive World?

Gas Blender ships an update every 2 months, and Dive World fortnightly. Most recently, Gas Blender was updated on August 8, 2026 and Dive World on September 10, 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.*