# SolarinvMonitor vs 金属探测仪器

The clearest difference is in-app purchases: SolarinvMonitor at none against 金属探测仪器's 2. SolarinvMonitor also leads on iOS requirement (9.0 vs 15.6). 金属探测仪器's advantage is device support. On price there is nothing between them.

Both are free to download. 金属探测仪器 sells 2 in-app purchases, starting at $2.99 per month. SolarinvMonitor asks for nothing beyond the download.

## The numbers

| Metric | SolarinvMonitor | 金属探测仪器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 3 days |
| Size | 34 MB | 17 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [屹能洁电子(台州)有限公司](https://appshunter.io/developer/1720331506) | [魁鹏 宋](https://appshunter.io/developer/977980685) |

## What reviewers say

### SolarinvMonitor

[App page](https://appshunter.io/ios/app/solarinvmonitor/id6474011394)

**In-app purchases:** none


### 金属探测仪器

[App page](https://appshunter.io/ios/app/id6741529009)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员1 | $2.99 | per month |
| 年会员1 | $4.99 | per year |


## Frequently asked questions

### Is SolarinvMonitor free?

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

### Is 金属探测仪器 free?

金属探测仪器 is free to download, with in-app purchases available.

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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.*