# CLAS xStream vs Sky Tracker Plus

The clearest difference is update cadence: Sky Tracker Plus at every 3 days against CLAS xStream's every 6 months. 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.

CLAS xStream ships an update every 6 months, Sky Tracker Plus every 3 days. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | CLAS xStream | Sky Tracker Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Size | 212 MB | 52 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro ICE Sales & Services (M) Sdn Bhd](https://appshunter.io/developer/1699530875) | [ONESKY COMMUNICATIONS LIMITED](https://appshunter.io/developer/1628063752) |

## What reviewers say

### CLAS xStream

[App page](https://appshunter.io/ios/app/clas-xstream/id6453694460)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sky Tracker Plus

[App page](https://appshunter.io/ios/app/sky-tracker-plus/id6476960812)

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

**In-app purchases:** none


## Frequently asked questions

### Is CLAS xStream free?

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

### Is Sky Tracker Plus free?

Sky Tracker Plus is free to download, with no in-app purchases.

### Do CLAS xStream or Sky Tracker Plus have ads?

Neither CLAS xStream nor Sky Tracker Plus shows ads.

### Which is updated more often, CLAS xStream or Sky Tracker Plus?

CLAS xStream ships an update every 6 months, and Sky Tracker Plus every 3 days. Most recently, CLAS xStream was updated on September 14, 2026 and Sky Tracker Plus on September 9, 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.*