# Aigens Universal App vs 4px Tracking

The clearest difference is ads: Aigens Universal App at none against 4px Tracking's shown. Aigens Universal App also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). 4px Tracking's advantage is update cadence (every 3 months vs every 13 months). 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.

Aigens Universal App ships an update every 13 months, 4px Tracking every 3 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Aigens Universal App | 4px Tracking |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/4px-tracking/id6759740103/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 months** |
| Size | 16 MB | 41 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aigens](https://appshunter.io/developer/515890648) | [Azad Hossen](https://appshunter.io/developer/1851826146) |

## What reviewers say

### Aigens Universal App

[App page](https://appshunter.io/ios/app/aigens-universal-app/id1594127334)

**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 Aigens Universal App free?

Aigens Universal 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 Aigens Universal App or 4px Tracking have ads?

4px Tracking shows ads; Aigens Universal App does not.

### Which is updated more often, Aigens Universal App or 4px Tracking?

Aigens Universal App ships an update every 13 months, and 4px Tracking every 3 months. Most recently, Aigens Universal App was updated on October 16, 2026 and 4px Tracking on October 24, 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.*