# UniTracks vs Probability Paradox Lab

The clearest difference is ads: UniTracks at none against Probability Paradox Lab's shown. UniTracks also leads on update cadence (every 5 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. UniTracks sells 1 in-app purchase, starting at $14.99 per year and Probability Paradox Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UniTracks ships an update every 5 days, Probability Paradox Lab every 3 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | UniTracks | Probability Paradox Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 36 MB | 18 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Cossey](https://appshunter.io/developer/1877661792) | [Non Kudo](https://appshunter.io/developer/1890455917) |

## What reviewers say

### UniTracks

[App page](https://appshunter.io/ios/app/unitracks/id6758786696)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UniTracks Pro (Annual) | $14.99 | per year |


### Probability Paradox Lab

[App page](https://appshunter.io/ios/app/probability-paradox-lab/id6782385785)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock Pack | $0.99 | one-time |


## Frequently asked questions

### Is UniTracks free?

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

### Is Probability Paradox Lab free?

Probability Paradox Lab is free to download, with in-app purchases available.

### Do UniTracks or Probability Paradox Lab have ads?

Probability Paradox Lab shows ads; UniTracks does not.

### Which is updated more often, UniTracks or Probability Paradox Lab?

UniTracks ships an update every 5 days, and Probability Paradox Lab every 3 weeks. Most recently, UniTracks was updated on October 4, 2026 and Probability Paradox Lab on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*