# Constellation Map mobile vs Planetarium

The clearest difference is ads: Planetarium at none against Constellation Map mobile's shown. Planetarium also leads on review sentiment (100% vs 86%) and update cadence (every 11 days vs every 3 weeks). Constellation Map mobile's advantage is iOS requirement (13.0 vs 15.6). On price, in-app purchases, monetization model 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 and Planetarium sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Constellation Map mobile ships an update every 3 weeks, Planetarium every 11 days. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Constellation Map mobile | Planetarium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (4.6K ratings)](https://appshunter.io/ios/app/constellation-map-mobile/id1435568096/reviews)** | — |
| Number of ratings | **4.6K** | — |
| Positive reviews | 86.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 39 MB | 183 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [siranet GK](https://appshunter.io/developer/1435568095) | [雪飞 鲍](https://appshunter.io/developer/1481173071) |

## What reviewers say

### 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


### Planetarium

[App page](https://appshunter.io/ios/app/planetarium-stargazing-guide/id6754314064)

Explore the cosmos with a realistic virtual sky map. Identify stars, planets, and constellations using AR, and simulate celestial events. Access a vast knowledge base for an immersive astronomical learning experience.

**Highlights:** Realistic star and sky simulation, AR real-time celestial identification, Constellation and star information, Celestial phenomenon simulation, Extensive astronomical knowledge base, Diverse observation modes, Night mode for reduced light pollution

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Member | $3.99 | per month |
| Yearly Member | $14.99 | per year |


## Frequently asked questions

### Is Constellation Map mobile free?

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

### Is Planetarium free?

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

### Do Constellation Map mobile or Planetarium have ads?

Constellation Map mobile shows ads; Planetarium does not.

### Which is updated more often, Constellation Map mobile or Planetarium?

Constellation Map mobile ships an update every 3 weeks, and Planetarium every 11 days. Most recently, Constellation Map mobile was updated on October 26, 2026 and Planetarium on October 15, 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.*