# TrainKeeper vs SYXO

The clearest difference is update cadence: SYXO at every 5 days against TrainKeeper's every 3 weeks. SYXO also leads on iOS requirement (17.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TrainKeeper sells 2 in-app purchases, starting at $1.99 per month and SYXO sells 1 in-app purchase, starting at $34.99 per year. Whichever you choose, the download price is not the number that matters.

TrainKeeper ships an update every 3 weeks, SYXO every 5 days. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | TrainKeeper | SYXO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (6 ratings)](https://appshunter.io/ios/app/syxo-camera-tracker-detector/id6760963672/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 60 MB | 50 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Clemens Oberschmied](https://appshunter.io/developer/1811168085) | [其英 匡](https://appshunter.io/developer/1771974270) |

## What reviewers say

### TrainKeeper

[App page](https://appshunter.io/ios/app/trainkeeper/id6753151703)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrainKeeper Plus - Monatlich | $1.99 | per month |
| TrainKeeper Plus - Jährlich | $12.99 | per year |


### SYXO

[App page](https://appshunter.io/ios/app/syxo-camera-tracker-detector/id6760963672)

Enhance your personal safety by identifying potential hidden cameras and tracking devices in your surroundings. This tool helps you stay aware of your environment, detect unfamiliar electronic signals, and monitor for suspicious tracking patterns.

**Highlights:** Camera Risk Scanner, Nearby Device Scanner, Tracker Signal Finder, Smart Follow Alerts, Electronic Signal Scanner, Magnetic Signal Scanner

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $34.99 | per year |


## Frequently asked questions

### Is TrainKeeper free?

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

### Is SYXO free?

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

### Do TrainKeeper or SYXO have ads?

Neither TrainKeeper nor SYXO shows ads.

### Which is updated more often, TrainKeeper or SYXO?

TrainKeeper ships an update every 3 weeks, and SYXO every 5 days. Most recently, TrainKeeper was updated on October 3, 2026 and SYXO on October 16, 2026.

---

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