# IGC H₂ vs Unit Converter for Physics

The clearest difference is in-app purchases: IGC H₂ at none against Unit Converter for Physics's 1. IGC H₂ also leads on update cadence (every 5 days vs every 10 days) and iOS requirement (13.4 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Unit Converter for Physics sells 1 one-off in-app purchase. IGC H₂ asks for nothing beyond the download.

IGC H₂ ships an update every 5 days, Unit Converter for Physics every 10 days. The most recent releases landed on September 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | IGC H₂ | Unit Converter for Physics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 days |
| Size | 17 MB | 2 MB |
| Requires iOS | **13.4** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Industrial Gas Consultants LLC](https://appshunter.io/developer/1725282233) | [Jatuphol Jaturapat](https://appshunter.io/developer/1788860463) |

## What reviewers say

### IGC H₂

[App page](https://appshunter.io/ios/app/igc-h-co-unit-conversion-app/id6475814418)

**In-app purchases:** none


### Unit Converter for Physics

[App page](https://appshunter.io/ios/app/unit-converter-for-physics/id6745997040)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Solution | $0.99 | one-time |


## Frequently asked questions

### Is IGC H₂ free?

IGC H₂ is free to download, with no in-app purchases.

### Is Unit Converter for Physics free?

Unit Converter for Physics is free to download, with in-app purchases available.

### Do IGC H₂ or Unit Converter for Physics have ads?

Neither IGC H₂ nor Unit Converter for Physics shows ads.

### Which is updated more often, IGC H₂ or Unit Converter for Physics?

IGC H₂ ships an update every 5 days, and Unit Converter for Physics every 10 days. Most recently, IGC H₂ was updated on September 11, 2026 and Unit Converter for Physics on September 19, 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.*