# QSO Central vs Satellite Tracker 3D Sky Radar

The clearest difference is in-app purchases: QSO Central at none against Satellite Tracker 3D Sky Radar's 4. QSO Central also leads on ads (none vs shown). Satellite Tracker 3D Sky Radar's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Satellite Tracker 3D Sky Radar sells 4 in-app purchases, starting at $1.99 per 7 days. QSO Central asks for nothing beyond the download.

## The numbers

| Metric | QSO Central | Satellite Tracker 3D Sky Radar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qso-central/id6782027339/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 7 MB | 16 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Brickhouse Technologies LLC](https://appshunter.io/developer/6781303558) | [DEEPLY AI](https://appshunter.io/developer/1809787876) |

## What reviewers say

### QSO Central

[App page](https://appshunter.io/ios/app/qso-central/id6782027339)

Prepare for amateur radio licensing exams with comprehensive study tools and practice tests. Access essential station utilities, reference materials, and live data features, all designed to work offline for maximum accessibility.

**Highlights:** Offline exam preparation with official question pools, Realistic timed practice exams with instant grading, Station toolkit for band plans, antenna, and electrical calculations, Grid square tools and Morse code trainer, Logbook with ADIF/CSV export, Live data for callsign lookup and propagation

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

**In-app purchases:** none


### Satellite Tracker 3D Sky Radar

[App page](https://appshunter.io/ios/app/satellite-tracker-3d-sky-radar/id6782777113)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Satellite Tracker Premium Weekly | $1.99 | per 7 days |
| Satellite Tracker Premium Monthly | $5.99 | per month |
| Satellite Tracker Premium Yearly | $19.99 | per year |
| Satellite Tracker Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is QSO Central free?

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

### Is Satellite Tracker 3D Sky Radar free?

Satellite Tracker 3D Sky Radar is free to download, with in-app purchases available.

### Do QSO Central or Satellite Tracker 3D Sky Radar have ads?

Satellite Tracker 3D Sky Radar shows ads; QSO Central does not.

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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.*