# 环境监控预警 vs 积小助

The clearest difference is ads: 环境监控预警 at none against 积小助's shown. 积小助's advantage is update cadence (fortnightly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

环境监控预警 ships an update every 3 months, 积小助 fortnightly. The most recent releases landed on September 22, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 环境监控预警 | 积小助 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 78 MB | 37 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jiangsu Huihuan Environmental Protection Technology Co.,Ltd.](https://appshunter.io/developer/1335902310) | [中山市美昇电子科技有限公司](https://appshunter.io/developer/1587852969) |

## What reviewers say

### 环境监控预警

[App page](https://appshunter.io/ios/app/id1506853134)

**Features:** macOS Compatibility

**In-app purchases:** none


### 积小助

[App page](https://appshunter.io/ios/app/plus/id1670523726)

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

**In-app purchases:** none


## Frequently asked questions

### Is 环境监控预警 free?

环境监控预警 is free to download, with no in-app purchases.

### Is 积小助 free?

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

### Do 环境监控预警 or 积小助 have ads?

积小助 shows ads; 环境监控预警 does not.

### Which is updated more often, 环境监控预警 or 积小助?

环境监控预警 ships an update every 3 months, and 积小助 fortnightly. Most recently, 环境监控预警 was updated on September 22, 2026 and 积小助 on September 26, 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.*