# PowerMeter vs HzMetro安全监控

The clearest difference is iOS requirement: HzMetro安全监控 at 9.1 against PowerMeter's 13.0. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | PowerMeter | HzMetro安全监控 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 1 MB | 67 MB |
| Requires iOS | 13.0 | **9.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chicony power Technology Co.,Ltd.](https://appshunter.io/developer/1186590918) | [Hangzhou Small Fire Network Technology Co., Ltd.](https://appshunter.io/developer/1106805320) |

## What reviewers say

### PowerMeter

[App page](https://appshunter.io/ios/app/powermeter/id1456986633)

**Features:** macOS Compatibility

**In-app purchases:** none


### HzMetro安全监控

[App page](https://appshunter.io/ios/app/hzmetro/id1639079662)

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerMeter free?

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

### Is HzMetro安全监控 free?

HzMetro安全监控 is free to download, with no in-app purchases.

### Do PowerMeter or HzMetro安全监控 have ads?

Neither PowerMeter nor HzMetro安全监控 shows ads.

### Which is updated more often, PowerMeter or HzMetro安全监控?

PowerMeter ships an update every 2 months, and HzMetro安全监控 every 2 months. Most recently, PowerMeter was updated on October 16, 2026 and HzMetro安全监控 on October 20, 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.*