# 水泥指数 vs 环境哨兵

The clearest difference is in-app purchases: 环境哨兵 at none against 水泥指数's 6. 环境哨兵 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 水泥指数 sells 6 one-off in-app purchases. 环境哨兵 asks for nothing beyond the download.

水泥指数 ships an update every 2 months, 环境哨兵 every 3 weeks. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 水泥指数 | 环境哨兵 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 53 MB | 23 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [杭州行情通大数据有限公司](https://appshunter.io/developer/1819431033) | [Vispek Co., Ltd](https://appshunter.io/developer/1447793884) |

## What reviewers say

### 水泥指数

[App page](https://appshunter.io/ios/app/id1322949593)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 建筑材料VIP-1个品种（1年） | $229.99 | one-time |
| 建筑材料VIP-2个品种（1年） | $399.99 | one-time |
| 精选年会员 | $499.99 | one-time |
| 建筑材料VIP-3个品种（1年） | $599.99 | one-time |
| 建筑材料VIP-4个品种（1年） | $699.99 | one-time |
| 建筑材料VIP-5个品种（1年） | $899.99 | one-time |


### 环境哨兵

[App page](https://appshunter.io/ios/app/id6445802438)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 水泥指数 free?

水泥指数 is free to download, with in-app purchases available.

### Is 环境哨兵 free?

环境哨兵 is free to download, with no in-app purchases.

### Do 水泥指数 or 环境哨兵 have ads?

水泥指数 shows ads; 环境哨兵 does not.

### Which is updated more often, 水泥指数 or 环境哨兵?

水泥指数 ships an update every 2 months, and 环境哨兵 every 3 weeks. Most recently, 水泥指数 was updated on October 3, 2026 and 环境哨兵 on October 5, 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.*