# CO2 Fermentation Calculator vs WineCalc Pro

The clearest difference is price: CO2 Fermentation Calculator at Free against WineCalc Pro's $2.99. CO2 Fermentation Calculator also leads on iOS requirement (11.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

CO2 Fermentation Calculator is free to download; WineCalc Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CO2 Fermentation Calculator | WineCalc Pro |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Size | 34 MB | 6 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Logico2 International AB](https://appshunter.io/developer/1208875120) | [Manuchar Meskhidze](https://appshunter.io/developer/1885496605) |

## What reviewers say

### CO2 Fermentation Calculator

[App page](https://appshunter.io/ios/app/co2-fermentation-calculator/id6446313736)

**Features:** macOS Compatibility

**In-app purchases:** none


### WineCalc Pro

[App page](https://appshunter.io/ios/app/winecalc-pro/id6762343417)

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

**In-app purchases:** none


## Frequently asked questions

### Is CO2 Fermentation Calculator free?

CO2 Fermentation Calculator is free to download, with no in-app purchases.

### Is WineCalc Pro free?

WineCalc Pro costs $2.99, with no in-app purchases.

### Do CO2 Fermentation Calculator or WineCalc Pro have ads?

Neither CO2 Fermentation Calculator nor WineCalc Pro shows ads.

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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.*