# StarTracker HD vs SaturnMoons

The clearest difference is rating: SaturnMoons at 5.0 against StarTracker HD's 4.0. SaturnMoons also leads on chart position (#197 vs unranked) and device support (3 vs 1). StarTracker HD's advantage is update cadence (every 5 months vs every 26 months) and ratings volume (43 vs 1). On ads, in-app purchases and monetization model there is nothing between them.

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

SaturnMoons holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: StarTracker HD has 43 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 59% of StarTracker HD's written reviews are positive against 40% of SaturnMoons's, so the app with the better star average is not the one people write more warmly about.

StarTracker HD ships an update every 5 months, SaturnMoons every 26 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | StarTracker HD | SaturnMoons |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | [4.0 (43 ratings)](https://appshunter.io/ios/app/startracker-hd-mobile-skymap/id449605942/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/saturnmoons/id606938707/reviews)** |
| Number of ratings | **43** | 1 |
| Positive reviews | **59.4% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 26 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#197** |
| Size | 25 MB | 36 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [身吉 潘](https://appshunter.io/developer/341563645) | [Guidebook Inc](https://appshunter.io/developer/1387977271) |

## 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)


### SaturnMoons

[App page](https://appshunter.io/ios/app/saturnmoons/id606938707)

**Currently charting:** #197 Top Paid · Education (US App Store)

Explore Saturn's rings and moons with this interactive guide. Pinpoint the location of its largest moons and step through time to see their future positions. Discover fascinating facts and images of Saturn's unique lunar family.

**Highlights:** Locate Saturn's nine largest moons, Pinch-zoomable interface, Local time synchronization, Time controls (seconds, hours, days, years), Customizable telescope view, Encyclopedia of Saturn's moons, Stunning images of moons

**Features:** macOS Compatibility, 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 SaturnMoons free?

SaturnMoons costs $2.99, with no in-app purchases.

### Which has better reviews, StarTracker HD or SaturnMoons?

SaturnMoons is rated higher. StarTracker HD averages 4.0 out of 5 from 43 ratings, while SaturnMoons averages 5.0 from 1 ratings.

### Do StarTracker HD or SaturnMoons have ads?

Neither StarTracker HD nor SaturnMoons shows ads.

### Which is updated more often, StarTracker HD or SaturnMoons?

StarTracker HD ships an update every 5 months, and SaturnMoons every 26 months. Most recently, StarTracker HD was updated on October 8, 2026 and SaturnMoons on October 4, 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.*