# Dev Detect vs SystemZen

The clearest difference is ads: Dev Detect at none against SystemZen's shown. SystemZen's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Dev Detect sells 2 in-app purchases, starting at $4.99 per 7 days and SystemZen sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Dev Detect | SystemZen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 4 days |
| Size | 4 MB | 39 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [HONG KONG JIAOLAN CO. LIMITED](https://appshunter.io/developer/1719522154) | [Fenul LLC](https://appshunter.io/developer/6776814911) |

## What reviewers say

### Dev Detect

[App page](https://appshunter.io/ios/app/dev-detect-cpu-master/id6758431919)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Power | $4.99 | per 7 days |
| Yearly Power | $39.99 | per year |


### SystemZen

[App page](https://appshunter.io/ios/app/systemzen-cleaner-and-storage/id6794717513)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SystemZen Pro Monthly | $9.99 | per month |
| SystemZen Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is Dev Detect free?

Dev Detect is free to download, with in-app purchases available.

### Is SystemZen free?

SystemZen is free to download, with in-app purchases available.

### Do Dev Detect or SystemZen have ads?

SystemZen shows ads; Dev Detect does not.

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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.*