# 鲨鱼天气 vs 临沂市环境空气质量

The clearest difference is review sentiment: 鲨鱼天气 at 92% against 临沂市环境空气质量's 17%. 鲨鱼天气 also leads on update cadence (every 3 weeks vs every 6 weeks). 临沂市环境空气质量's advantage is iOS requirement (7.0 vs 13.0). 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.

鲨鱼天气 ships an update every 3 weeks, 临沂市环境空气质量 every 6 weeks. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 鲨鱼天气 | 临沂市环境空气质量 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (198 ratings)](https://appshunter.io/ios/app/pm25/id1207730070/reviews)** | — |
| Number of ratings | **198** | — |
| Positive reviews | **91.7% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 59 MB | 42 MB |
| Requires iOS | 13.0 | **7.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [LI XIANG](https://appshunter.io/developer/1444835904) | [广东旭诚科技有限公司](https://appshunter.io/developer/1048882371) |

## What reviewers say

### 鲨鱼天气

[App page](https://appshunter.io/ios/app/pm25/id1207730070)

Get accurate weather forecasts and real-time air quality monitoring, including PM2.5 data sourced from the US Embassy. Receive minute-level precipitation forecasts and alerts for severe weather to help you prepare.

**Highlights:** 15-day accurate weather forecast, 72-hour PM2.5 air quality forecast, 2-hour minute-level precipitation forecast, Disaster alerts for severe weather, Optimized for iOS 11 and iPhone X

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

**In-app purchases:** none


### 临沂市环境空气质量

[App page](https://appshunter.io/ios/app/id1446540032)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 鲨鱼天气 free?

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

### Is 临沂市环境空气质量 free?

临沂市环境空气质量 is free to download, with no in-app purchases.

### Do 鲨鱼天气 or 临沂市环境空气质量 have ads?

Neither 鲨鱼天气 nor 临沂市环境空气质量 shows ads.

### Which is updated more often, 鲨鱼天气 or 临沂市环境空气质量?

鲨鱼天气 ships an update every 3 weeks, and 临沂市环境空气质量 every 6 weeks. Most recently, 鲨鱼天气 was updated on November 2, 2026 and 临沂市环境空气质量 on October 29, 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.*