# Kxx Programmer's Reference vs Satellite Tracker

The clearest difference is price: Satellite Tracker at Free against Kxx Programmer's Reference's $3.99. Satellite Tracker also leads on update cadence (every 3 months vs every 10 months) and iOS requirement (15.1 vs 17.1). Kxx Programmer's Reference's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Satellite Tracker is free to download; Kxx Programmer's Reference costs $3.99 up front. Satellite Tracker sells 3 in-app purchases, starting at $2.99 per month. Kxx Programmer's Reference asks for nothing beyond the download.

Kxx Programmer's Reference ships an update every 10 months, Satellite Tracker every 3 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Kxx Programmer's Reference | Satellite Tracker |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[2.0 (3 ratings)](https://appshunter.io/ios/app/satellite-tracker-sky-map/id1628196485/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 28 MB |
| Requires iOS | 17.1 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mike Downs, ks7d](https://appshunter.io/developer/367909071) | [Deisy Renteria](https://appshunter.io/developer/1579364093) |

## What reviewers say

### Kxx Programmer's Reference

[App page](https://appshunter.io/ios/app/kxx-programmers-reference/id367909068)

**In-app purchases:** none


### Satellite Tracker

[App page](https://appshunter.io/ios/app/satellite-tracker-sky-map/id1628196485)

Track satellites and the International Space Station in real-time with interactive maps and detailed information. Explore a comprehensive database of various satellite types, from weather and communication to navigation and scientific missions. Offers an ad-free experience and expanded features with a premium subscription.

**Highlights:** Real-time satellite tracking, Interactive sky maps, Comprehensive satellite database, Detailed satellite information, Offline functionality, Ad-free premium experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $2.99 | per month |
| Annual Premium Subscription | $14.99 | per year |
| Lifetime Premium Access | $39.99 | one-time |


## Frequently asked questions

### Is Kxx Programmer's Reference free?

Kxx Programmer's Reference costs $3.99, with no in-app purchases.

### Is Satellite Tracker free?

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

### Do Kxx Programmer's Reference or Satellite Tracker have ads?

Satellite Tracker shows ads; Kxx Programmer's Reference does not.

### Which is updated more often, Kxx Programmer's Reference or Satellite Tracker?

Kxx Programmer's Reference ships an update every 10 months, and Satellite Tracker every 3 months. Most recently, Kxx Programmer's Reference was updated on October 2, 2026 and Satellite Tracker on October 3, 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.*