# OnTracx vs Kaddey

The clearest difference is update cadence: Kaddey at every 2 days against OnTracx's monthly. OnTracx's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads 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.

OnTracx ships an update monthly, Kaddey every 2 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | OnTracx | Kaddey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 189 MB | 43 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OnTracx BV](https://appshunter.io/developer/1719951264) | [Kaddey B.V.](https://appshunter.io/developer/6816235642) |

## What reviewers say

### OnTracx

[App page](https://appshunter.io/ios/app/ontracx/id6473828071)

**Features:** Vision Pro support

**In-app purchases:** none


### Kaddey

[App page](https://appshunter.io/ios/app/kaddey/id6816235400)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OnTracx free?

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

### Is Kaddey free?

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

### Do OnTracx or Kaddey have ads?

Neither OnTracx nor Kaddey shows ads.

### Which is updated more often, OnTracx or Kaddey?

OnTracx ships an update monthly, and Kaddey every 2 days. Most recently, OnTracx was updated on November 8, 2026 and Kaddey on November 10, 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.*