# Zero CO2 vs Climate Mind

The clearest difference is in-app purchases: Climate Mind at none against Zero CO2's 1. Climate Mind also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.5). Zero CO2's advantage is update cadence (every 3 days vs monthly) and ratings volume (4 vs 1). On price, rating and device support there is nothing between them.

Both are free to download. Zero CO2 sells 1 one-off in-app purchase. Climate Mind asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Zero CO2 against 5.0 for Climate Mind. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Zero CO2 ships an update every 3 days, Climate Mind monthly. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Zero CO2 | Climate Mind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/zero-co2-get-climate-neutral/id1534365588/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/climate-mind/id6462500987/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 24 MB |
| Requires iOS | 15.5 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [Caramba App Development](https://appshunter.io/developer/349530108) | [Kameron Rodrigues](https://appshunter.io/developer/1703108202) |

## What reviewers say

### Zero CO2

[App page](https://appshunter.io/ios/app/zero-co2-get-climate-neutral/id1534365588)

This app tracks your phone's carbon footprint from data usage and helps you offset emissions by planting trees. Monitor your CO2 output and see how your reforestation efforts compensate for it, receiving certificates for each planted tree.

**Highlights:** Monitors phone carbon footprint, Tracks CO2 emissions from data usage, Compensates emissions by planting trees, Visualizes CO2 emissions and tree compensation, Provides certificates for planted trees

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plant your tree | $0.99 | one-time |


### Climate Mind

[App page](https://appshunter.io/ios/app/climate-mind/id6462500987)

This app helps you have productive and inspiring conversations about the climate crisis. It provides science-backed information, helps you understand your own climate personality, and guides discussions with friends and family to inspire action.

**Highlights:** Climate change information and solutions, Personalized climate personality quiz, Guided conversations with others, Myth-busting climate articles, Actionable solution discovery

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zero CO2 free?

Zero CO2 is free to download, with in-app purchases available.

### Is Climate Mind free?

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

### Which has better reviews, Zero CO2 or Climate Mind?

Zero CO2 and Climate Mind are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Zero CO2 or Climate Mind have ads?

Zero CO2 shows ads; Climate Mind does not.

### Which is updated more often, Zero CO2 or Climate Mind?

Zero CO2 ships an update every 3 days, and Climate Mind monthly. Most recently, Zero CO2 was updated on September 30, 2026 and Climate Mind on October 3, 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.*