# One Agent App vs 4px Tracking

The clearest difference is ads: One Agent App at none against 4px Tracking's shown. One Agent App also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). On price 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.

## The numbers

| Metric | One Agent App | 4px Tracking |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 months |
| Size | 73 MB | 41 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The Blue Market LLC](https://appshunter.io/developer/1529394872) | [Azad Hossen](https://appshunter.io/developer/1851826146) |

## What reviewers say

### One Agent App

[App page](https://appshunter.io/ios/app/one-agent-app/id6478654970)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4px Tracking

[App page](https://appshunter.io/ios/app/4px-tracking/id6759740103)

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

**In-app purchases:** none


## Frequently asked questions

### Is One Agent App free?

One Agent App is free to download, with no in-app purchases.

### Is 4px Tracking free?

4px Tracking is free to download, with no in-app purchases.

### Do One Agent App or 4px Tracking have ads?

4px Tracking shows ads; One Agent App 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.*