# Trace Pet vs trackNkey

The clearest difference is update cadence: Trace Pet at every 3 weeks against trackNkey's every 15 months. trackNkey's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Trace Pet ships an update every 3 weeks, trackNkey every 15 months. Both last shipped on September 14, 2026.

## The numbers

| Metric | Trace Pet | trackNkey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 15 months |
| Size | 79 MB | 125 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦欢 林](https://appshunter.io/developer/1467148377) | [trackNkey](https://appshunter.io/developer/1754343952) |

## What reviewers say

### Trace Pet

[App page](https://appshunter.io/ios/app/trace-pet/id6484276640)

**Features:** Apple Wallet

**In-app purchases:** none


### trackNkey

[App page](https://appshunter.io/ios/app/tracknkey/id6504924316)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trace Pet free?

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

### Is trackNkey free?

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

### Do Trace Pet or trackNkey have ads?

Neither Trace Pet nor trackNkey shows ads.

### Which is updated more often, Trace Pet or trackNkey?

Trace Pet ships an update every 3 weeks, and trackNkey every 15 months. Most recently, Trace Pet was updated on September 14, 2026 and trackNkey on September 14, 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.*