# 快分鸦 vs CO₂ Aware

The clearest difference is update cadence: 快分鸦 at every 2 weeks against CO₂ Aware's every 3 months. 快分鸦 also leads on iOS requirement (12.0 vs 15.0). 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.

快分鸦 ships an update every 2 weeks, CO₂ Aware every 3 months. The most recent releases landed on October 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 快分鸦 | CO₂ Aware |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/co-aware/id1670412338/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | — | Free |
| Size | 46 MB | 11 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Lingshidai (Harbin) Environmental Protection Technology Co., Ltd](https://appshunter.io/developer/1589580514) | [Shouzhi Wang](https://appshunter.io/developer/1670412340) |

## What reviewers say

### 快分鸦

[App page](https://appshunter.io/ios/app/id1589580512)

**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 快分鸦 free?

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

### Is CO₂ Aware free?

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

### Do 快分鸦 or CO₂ Aware have ads?

Neither 快分鸦 nor CO₂ Aware shows ads.

### Which is updated more often, 快分鸦 or CO₂ Aware?

快分鸦 ships an update every 2 weeks, and CO₂ Aware every 3 months. Most recently, 快分鸦 was updated on October 27, 2026 and CO₂ Aware on October 10, 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.*