# NMF.earth vs CO₂ Aware

The clearest difference is rating: NMF.earth at 5.0 against CO₂ Aware's 4.0. NMF.earth also leads on update cadence (every 6 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

NMF.earth holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

NMF.earth ships an update every 6 weeks, CO₂ Aware every 3 months. The most recent releases landed on June 4, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | NMF.earth | CO₂ Aware |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nmfearth/id1494561829/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/co-aware/id1670412338/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 42 MB | 11 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pierre Bresson](https://appshunter.io/developer/886617892) | [Shouzhi Wang](https://appshunter.io/developer/1670412340) |

## What reviewers say

### NMF.earth

[App page](https://appshunter.io/ios/app/nmfearth/id1494561829)

Track and decrease your environmental impact by understanding your carbon footprint. Set personal emission goals and monitor your progress monthly to stay within your budget.

**Highlights:** Calculate CO2 emissions, Define carbon budget, Track monthly limits, Reduce carbon footprint, Actionable insights

**Features:** macOS Compatibility

**In-app purchases:** none


### CO₂ Aware

[App page](https://appshunter.io/ios/app/co-aware/id1670412338)

This app encourages daily actions to combat climate change with a growing interactive tree visualization. It offers environmental news and integrates with Apple Health to promote walking, helping users reduce their carbon footprint.

**Highlights:** Daily climate action tracking, Interactive growing tree visualization, Environmental news abstracts and links, Apple Health integration for step tracking, Photo record of completed actions, Reminder of past accomplishments

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NMF.earth free?

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

### Is CO₂ Aware free?

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

### Which has better reviews, NMF.earth or CO₂ Aware?

NMF.earth is rated higher. NMF.earth averages 5.0 out of 5 from 1 ratings, while CO₂ Aware averages 4.0 from 2 ratings.

### Do NMF.earth or CO₂ Aware have ads?

Neither NMF.earth nor CO₂ Aware shows ads.

### Which is updated more often, NMF.earth or CO₂ Aware?

NMF.earth ships an update every 6 weeks, and CO₂ Aware every 3 months. Most recently, NMF.earth was updated on June 4, 2026 and CO₂ Aware on September 11, 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.*