# StarTracker HD vs SkyORB ∞ Astronomy

The clearest difference is review sentiment: StarTracker HD at 59% against SkyORB ∞ Astronomy's 0%. StarTracker HD also leads on iOS requirement (12.0 vs 15.6). SkyORB ∞ Astronomy's advantage is update cadence (every 2 months vs every 5 months) and device support (5 vs 1). On ads, in-app purchases and monetization model there is nothing between them.

StarTracker HD costs $3.99 and SkyORB ∞ Astronomy $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

StarTracker HD ships an update every 5 months, SkyORB ∞ Astronomy every 2 months. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | StarTracker HD | SkyORB ∞ Astronomy |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | **[4.0 (43 ratings)](https://appshunter.io/ios/app/startracker-hd-mobile-skymap/id449605942/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | **59.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 25 MB | 303 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [身吉 潘](https://appshunter.io/developer/341563645) | [Stephane Denis](https://appshunter.io/developer/295455703) |

## What reviewers say

### StarTracker HD

[App page](https://appshunter.io/ios/app/startracker-hd-mobile-skymap/id449605942)

Explore the night sky with this augmented reality planetarium. Identify stars, constellations, planets, and deep sky objects by simply pointing your device at the sky. All data is available offline.

**Highlights:** Augmented Reality Star Gazing, Identify 8000+ stars, planets, and constellations, Offline data access, Search and lock celestial objects, Time Machine feature, High-quality graphics

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Smooth, fluid graphics and responsive gyroscope tracking
- 👍 Intuitive and easy-to-use interface
- 🌟 Beautiful HD visuals and stunning design
- 📍 Accurate real-time sky positioning and planet/constellation identification
- 🎓 Excellent educational tool for learning astronomy

**What reviewers complain about**

- 🐛 Frequent crashes on various devices
- 🐛 Compass/gyroscope malfunction issues
- 🐛 Screen display problems on larger tablets
- ❌ Limited functionality and educational depth
- ❌ Lack of object information and descriptions

**Reported bugs**

- App crashes on startup or during use
- Compass direction incorrect (north pointing wrong direction)
- Gyroscope not responding or locked
- Share button causes crashes
- Forward/share button greying out and causing screen loss

**Requested features**

- Add search functionality for celestial objects
- Include ISS and satellite tracking
- Display object information (distance, magnitude, color, brightness)
- Add ecliptic line visibility option
- Show coordinate information (RA, Dec, Alt, Azimuth)


### SkyORB ∞ Astronomy

[App page](https://appshunter.io/ios/app/skyorb-astronomy/id1625985880)

Explore the universe with an interactive 3D star map, real-time celestial positions, and a 14-day schedule of astronomical events. Identify stars and planets using augmented reality and access detailed information about celestial bodies.

**Highlights:** Interactive 3D star map, Real-time celestial positions, Augmented Reality (AR) identification, 14-day astronomical event schedule, Detailed planet and celestial body information, Time shift feature for celestial events

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

**In-app purchases:** none


## Frequently asked questions

### Is StarTracker HD free?

StarTracker HD costs $3.99, with no in-app purchases.

### Is SkyORB ∞ Astronomy free?

SkyORB ∞ Astronomy costs $2.99, with no in-app purchases.

### Do StarTracker HD or SkyORB ∞ Astronomy have ads?

Neither StarTracker HD nor SkyORB ∞ Astronomy shows ads.

### Which is updated more often, StarTracker HD or SkyORB ∞ Astronomy?

StarTracker HD ships an update every 5 months, and SkyORB ∞ Astronomy every 2 months. Most recently, StarTracker HD was updated on October 13, 2026 and SkyORB ∞ Astronomy on September 29, 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.*