# 觀天氣 vs EdiGreen

The clearest difference is review sentiment: 觀天氣 at 77% against EdiGreen's 0%. 觀天氣 also leads on rating (4.5 vs 2.6) and ratings volume (64 vs 7). On price, update cadence, 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.

觀天氣 holds the better App Store score, 4.5 against 2.6. That said, the two scores are not equally well evidenced: 觀天氣 has 64 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 77% of 觀天氣's written reviews are positive against 0% of EdiGreen's.

觀天氣 ships an update every 2 months, EdiGreen every 3 months. The most recent releases landed on October 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 觀天氣 | EdiGreen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (64 ratings)](https://appshunter.io/ios/app/id535701918/reviews)** | [2.6 (7 ratings)](https://appshunter.io/ios/app/edigreen/id1086893817/reviews) |
| Number of ratings | **64** | 7 |
| Positive reviews | **76.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 55 MB | 39 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [GETONE TECH CO.](https://appshunter.io/developer/526625809) | [EDIMAX](https://appshunter.io/developer/324658320) |

## What reviewers say

### 觀天氣

[App page](https://appshunter.io/ios/app/id535701918)

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

**In-app purchases:** none


### EdiGreen

[App page](https://appshunter.io/ios/app/edigreen/id1086893817)

Instantly monitor PM2.5 air quality with real-time updates every 5 minutes. This app provides an easy-to-understand AQI index, global monitoring station data, and personalized recommendations to protect your respiratory health.

**Highlights:** Real-time PM2.5 air quality information, Temperature and humidity microclimate query, 24-hour air quality trend chart, Daily AQI index and action advice, Global monitoring station map, Favorite station list, GPS location for nearby stations

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

**In-app purchases:** none


## Frequently asked questions

### Is 觀天氣 free?

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

### Is EdiGreen free?

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

### Which has better reviews, 觀天氣 or EdiGreen?

觀天氣 is rated higher. 觀天氣 averages 4.5 out of 5 from 64 ratings, while EdiGreen averages 2.6 from 7 ratings.

### Do 觀天氣 or EdiGreen have ads?

Both 觀天氣 and EdiGreen show ads.

### Which is updated more often, 觀天氣 or EdiGreen?

觀天氣 ships an update every 2 months, and EdiGreen every 3 months. Most recently, 觀天氣 was updated on October 9, 2026 and EdiGreen on September 23, 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.*