# CO2 Risk Calculator vs Sensitive Analysis

The clearest difference is ads: CO2 Risk Calculator at none against Sensitive Analysis's shown. CO2 Risk Calculator also leads on iOS requirement (11.0 vs 17.7.2). Sensitive Analysis's advantage is update cadence (fortnightly vs every 9 months). On price, 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 Risk Calculator ships an update every 9 months, Sensitive Analysis fortnightly. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CO2 Risk Calculator | Sensitive Analysis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Fortnightly** |
| Size | 6 MB | 37 MB |
| Requires iOS | **11.0** | 17.7.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Logico2 International AB](https://appshunter.io/developer/1208875120) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### CO2 Risk Calculator

[App page](https://appshunter.io/ios/app/co2-risk-calculator/id1019495878)

**In-app purchases:** none


### Sensitive Analysis

[App page](https://appshunter.io/ios/app/sensitive-analysis/id6698856244)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CO2 Risk Calculator free?

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

### Is Sensitive Analysis free?

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

### Do CO2 Risk Calculator or Sensitive Analysis have ads?

Sensitive Analysis shows ads; CO2 Risk Calculator does not.

### Which is updated more often, CO2 Risk Calculator or Sensitive Analysis?

CO2 Risk Calculator ships an update every 9 months, and Sensitive Analysis fortnightly. Most recently, CO2 Risk Calculator was updated on October 24, 2026 and Sensitive Analysis on October 9, 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.*