# 天气圈 vs Earth Observery

The clearest difference is in-app purchases: 天气圈 at none against Earth Observery's 3. 天气圈 also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Earth Observery sells 3 in-app purchases, starting at $1.99 per 7 days. 天气圈 asks for nothing beyond the download.

天气圈 ships an update every 3 weeks, Earth Observery every 4 weeks. The most recent releases landed on October 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 天气圈 | Earth Observery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/earth-observery/id6683308769/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 76 MB | 73 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [健 陈](https://appshunter.io/developer/1129782902) | [Mahmoud Suliman](https://appshunter.io/developer/571829037) |

## What reviewers say

### 天气圈

[App page](https://appshunter.io/ios/app/id6445831670)

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

**In-app purchases:** none


### Earth Observery

[App page](https://appshunter.io/ios/app/earth-observery/id6683308769)

Track natural disasters and extreme weather events globally in near real-time. Get timely updates on earthquakes, cyclones, wildfires, and floods with interactive maps and curated news.

**Highlights:** Near real-time natural event tracking, Interactive maps and heat view, Disaster news from trusted sources, Smart event filtering and sorting, Proximity-based emergency resources, Dark mode for comfortable viewing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $1.99 | per 7 days |
| Earth Observery Monthly Plan | $4.99 | per month |
| Earth Observery Annual Plan | $29.99 | per year |


## Frequently asked questions

### Is 天气圈 free?

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

### Is Earth Observery free?

Earth Observery is free to download, with in-app purchases available.

### Do 天气圈 or Earth Observery have ads?

Neither 天气圈 nor Earth Observery shows ads.

### Which is updated more often, 天气圈 or Earth Observery?

天气圈 ships an update every 3 weeks, and Earth Observery every 4 weeks. Most recently, 天气圈 was updated on October 4, 2026 and Earth Observery on November 8, 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.*