# Comet Book vs SpaceStationAR LITE

The clearest difference is rating: Comet Book at 5.0 against SpaceStationAR LITE's 4.5. Comet Book also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). SpaceStationAR LITE's advantage is update cadence (every 2 weeks vs every 6 months) and ratings volume (139 vs 2). On price, 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.

Comet Book holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SpaceStationAR LITE has 139 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 55% of Comet Book's written reviews are positive against 47% of SpaceStationAR LITE's.

Comet Book ships an update every 6 months, SpaceStationAR LITE every 2 weeks. Both last shipped on September 21, 2026.

## The numbers

| Metric | Comet Book | SpaceStationAR LITE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/comet-book/id604782335/reviews)** | [4.5 (139 ratings)](https://appshunter.io/ios/app/spacestationar-lite/id1023377153/reviews) |
| Number of ratings | 2 | **139** |
| Positive reviews | **54.9% of reviews** | 46.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 27 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 9+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Toriningen Co.,Ltd.](https://appshunter.io/developer/361194121) |

## What reviewers say

### Comet Book

[App page](https://appshunter.io/ios/app/comet-book/id604782335)

Discover and track comets with this educational app. It provides real-time direction and elevation data to help you locate celestial objects in the night sky. Explore the solar system in 3D and visualize the movement of comets and planets.

**Highlights:** Comet viewing direction and elevation, Real-time celestial object tracking, 3D Solar System mode, Visualize comet and planet motion, Observing site guidance

**In-app purchases:** none


### SpaceStationAR LITE

[App page](https://appshunter.io/ios/app/spacestationar-lite/id1023377153)

Explore the night sky with augmented reality. This app overlays satellite passes, stars, and celestial objects onto your real-world view. Track the ISS, Starlink trains, and more, with calendar events and map visualizations.

**Highlights:** AR satellite pass simulation, Display of stars, galaxies, and spacecraft, Satellite pass visualization on maps, Global map of satellite orbits, Calendar of upcoming passes and launches, Offline app usage, Satellite pass notifications

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Comet Book free?

Comet Book is free to download, with no in-app purchases.

### Is SpaceStationAR LITE free?

SpaceStationAR LITE is free to download, with no in-app purchases.

### Which has better reviews, Comet Book or SpaceStationAR LITE?

Comet Book is rated higher. Comet Book averages 5.0 out of 5 from 2 ratings, while SpaceStationAR LITE averages 4.5 from 139 ratings.

### Do Comet Book or SpaceStationAR LITE have ads?

SpaceStationAR LITE shows ads; Comet Book does not.

### Which is updated more often, Comet Book or SpaceStationAR LITE?

Comet Book ships an update every 6 months, and SpaceStationAR LITE every 2 weeks. Most recently, Comet Book was updated on September 21, 2026 and SpaceStationAR LITE on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*