# IMCA Diving CPD vs GasUnits

The clearest difference is update cadence: GasUnits at every 10 days against IMCA Diving CPD's every 2 months. IMCA Diving CPD's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IMCA Diving CPD ships an update every 2 months, GasUnits every 10 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | IMCA Diving CPD | GasUnits |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gasunits/id6762513689/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 36 MB | 30 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ACUIZEN TECHNOLOGIES SINGAPORE PTE. LTD.](https://appshunter.io/developer/1438003775) | [Vivek Chandra](https://appshunter.io/developer/461237208) |

## What reviewers say

### IMCA Diving CPD

[App page](https://appshunter.io/ios/app/imca-diving-cpd/id1473933142)

Stay current with the commercial diving sector through multimedia content and quizzes. This application offers diving supervisors the latest updates and knowledge to maintain their professional development.

**Highlights:** Latest commercial diving updates, Multimedia content modules, Knowledge retention quizzes, Professional development tracking, Supervisor-focused learning

**Features:** macOS Compatibility

**In-app purchases:** none


### GasUnits

[App page](https://appshunter.io/ios/app/gasunits/id6762513689)

This app simplifies complex natural gas and LNG unit conversions for industry professionals. It accurately converts over 90 volume, rate, and price units, offering precise results and composition-based estimates. Easily copy formatted results for reports and models.

**Highlights:** Converts 90+ gas volume, rate, and price units, Supports three standard gas heating values, Calculates barrels of oil equivalent, Provides composition-based estimates, Fast, intuitive, and error-proof design, Copy results for reports and models

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

**In-app purchases:** none


## Frequently asked questions

### Is IMCA Diving CPD free?

IMCA Diving CPD is free to download, with no in-app purchases.

### Is GasUnits free?

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

### Do IMCA Diving CPD or GasUnits have ads?

Neither IMCA Diving CPD nor GasUnits shows ads.

### Which is updated more often, IMCA Diving CPD or GasUnits?

IMCA Diving CPD ships an update every 2 months, and GasUnits every 10 days. Most recently, IMCA Diving CPD was updated on October 10, 2026 and GasUnits on October 7, 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.*