# 星座早見 / Planisphere vs Constellation Map mobile

The clearest difference is review sentiment: Constellation Map mobile at 86% against 星座早見 / Planisphere's 0%. Constellation Map mobile also leads on rating (4.7 vs 1.0) and ratings volume (4.6K vs 1). 星座早見 / Planisphere's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Constellation Map mobile sells 1 in-app purchase, starting at $1.99 per month. 星座早見 / Planisphere asks for nothing beyond the download.

Constellation Map mobile holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Constellation Map mobile has 4.6K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of 星座早見 / Planisphere's written reviews are positive against 86% of Constellation Map mobile's.

星座早見 / Planisphere ships an update every 5 weeks, Constellation Map mobile every 6 weeks. The most recent releases landed on June 24, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 星座早見 / Planisphere | Constellation Map mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/planisphere/id882653086/reviews) | **[4.7 (4.6K ratings)](https://appshunter.io/ios/app/constellation-map-mobile/id1435568096/reviews)** |
| Number of ratings | 1 | **4.6K** |
| Positive reviews | 0.0% of reviews | **86.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 277 MB | 39 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMAGE FACTORY CO., LTD.](https://appshunter.io/developer/882653089) | [siranet GK](https://appshunter.io/developer/1435568095) |

## What reviewers say

### 星座早見 / Planisphere

[App page](https://appshunter.io/ios/app/planisphere/id882653086)

This app simulates the night sky, displaying stars, planets, and the moon. It functions like a traditional planisphere but with added digital features, allowing users to easily view celestial positions and predict sunrise/sunset times.

**Highlights:** Real-time sky display, Planet and moon tracking, Interactive sky map, Sunrise/sunset prediction, Zoomable interface, Dark-friendly screen

**In-app purchases:** none


### Constellation Map mobile

[App page](https://appshunter.io/ios/app/constellation-map-mobile/id1435568096)

Explore the night sky by pointing your device upwards. Identify stars, constellations, and planets with detailed information. View celestial bodies below the horizon and track planetary orbits.

**Highlights:** Identify stars, constellations, and planets, View celestial bodies below the horizon, Track planetary orbits, Display over 100 bright stars and objects, Zoom and pan with touch gestures, Toggle display of constellation lines and names

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads  1 month | $1.99 | per month |

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate star/planet mapping
- 💡 Helpful for beginners and experts
- 🌟 Great for stargazing and astrophotography
- 🌙 Useful moon phase and solar orbit information

**What reviewers complain about**

- 🐛 Alignment/calibration issues
- 🔀 Reversed/incorrect orientation
- 🔍 Difficulty locating specific celestial objects
- 💻 Compatibility problems on some devices

**Reported bugs**

- App crashes on opening
- Incorrect positioning of sun, moon, and planets
- Constellation names disappearing or not displaying properly

**Requested features**

- Add option to view constellations from inside the celestial sphere
- Improve search functionality to easily find planets, stars, and galaxies
- Provide more detailed information and descriptions for celestial objects
- Add ability to calibrate the app to match the actual sky view


## Frequently asked questions

### Is 星座早見 / Planisphere free?

星座早見 / Planisphere is free to download, with no in-app purchases.

### Is Constellation Map mobile free?

Constellation Map mobile is free to download, with in-app purchases available.

### Which has better reviews, 星座早見 / Planisphere or Constellation Map mobile?

Constellation Map mobile is rated higher. 星座早見 / Planisphere averages 1.0 out of 5 from 1 ratings, while Constellation Map mobile averages 4.7 from 4.6K ratings.

### Do 星座早見 / Planisphere or Constellation Map mobile have ads?

Constellation Map mobile shows ads; 星座早見 / Planisphere does not.

### Which is updated more often, 星座早見 / Planisphere or Constellation Map mobile?

星座早見 / Planisphere ships an update every 5 weeks, and Constellation Map mobile every 6 weeks. Most recently, 星座早見 / Planisphere was updated on June 24, 2026 and Constellation Map mobile on September 22, 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.*