# Fast Converter Pro vs IGC H₂

The clearest difference is update cadence: IGC H₂ at every 5 days against Fast Converter Pro's monthly. Fast Converter Pro's advantage is iOS requirement (10.0 vs 13.4). On price, ads, in-app purchases and device support there is nothing between them.

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

Fast Converter Pro ships an update monthly, IGC H₂ every 5 days. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fast Converter Pro | IGC H₂ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free | — |
| Size | 22 MB | 17 MB |
| Requires iOS | **10.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JUPITER TEKNOLOJI SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1400061771) | [Industrial Gas Consultants LLC](https://appshunter.io/developer/1725282233) |

## What reviewers say

### Fast Converter Pro

[App page](https://appshunter.io/ios/app/fast-converter-pro-units/id1358772909)

This utility app offers a smart and elegant tool for converting between various units of measurement. It covers over 9 common categories, including length, temperature, mass, and volume, with a simple and optimized user interface.

**Highlights:** 9+ unit categories, Length conversion, Temperature conversion, Mass conversion, Volume conversion, Simple UI

**Features:** macOS Compatibility

**In-app purchases:** none


### IGC H₂

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

**In-app purchases:** none


## Frequently asked questions

### Is Fast Converter Pro free?

Fast Converter Pro is free to download, with no in-app purchases.

### Is IGC H₂ free?

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

### Do Fast Converter Pro or IGC H₂ have ads?

Neither Fast Converter Pro nor IGC H₂ shows ads.

### Which is updated more often, Fast Converter Pro or IGC H₂?

Fast Converter Pro ships an update monthly, and IGC H₂ every 5 days. Most recently, Fast Converter Pro was updated on October 17, 2026 and IGC H₂ on October 25, 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.*