# CO2 Modeller vs myThaw

The clearest difference is update cadence: myThaw at every 2 months against CO2 Modeller's every 36 months. 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.

CO2 Modeller ships an update every 36 months, myThaw every 2 months. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CO2 Modeller | myThaw |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/co2-modeller/id1037101261/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 9 MB | 78 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alex Rogers](https://appshunter.io/developer/346832869) | [Alfred-Wegener-Institut](https://appshunter.io/developer/1578278224) |

## What reviewers say

### CO2 Modeller

[App page](https://appshunter.io/ios/app/co2-modeller/id1037101261)

Simulate the impact of reducing carbon emissions on climate change. This app generates projections for atmospheric CO2 concentration, global warming, sea level rise, and ocean acidification.

**Highlights:** Model carbon emission reductions, Simulate climate change effects, Project CO2 concentration, Estimate global warming, Predict sea level rise, Analyze ocean acidification

**Features:** macOS Compatibility

**In-app purchases:** none


### myThaw

[App page](https://appshunter.io/ios/app/mythaw/id1578278222)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CO2 Modeller free?

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

### Is myThaw free?

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

### Do CO2 Modeller or myThaw have ads?

Neither CO2 Modeller nor myThaw shows ads.

### Which is updated more often, CO2 Modeller or myThaw?

CO2 Modeller ships an update every 36 months, and myThaw every 2 months. Most recently, CO2 Modeller was updated on October 2, 2026 and myThaw on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*