# Sky Map vs Open Planetarium

The clearest difference is in-app purchases: Open Planetarium at none against Sky Map's 4. Open Planetarium also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.6). On price and device support there is nothing between them.

Both are free to download. Sky Map sells 4 in-app purchases, starting at $1.99 per 7 days. Open Planetarium asks for nothing beyond the download.

## The numbers

| Metric | Sky Map | Open Planetarium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sky-map-live-star-tracker/id6790243989/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 26 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEEPLY AI](https://appshunter.io/developer/1809787876) | [CatsAI Agency](https://appshunter.io/developer/6799471013) |

## What reviewers say

### Sky Map

[App page](https://appshunter.io/ios/app/sky-map-live-star-tracker/id6790243989)

Identify stars, planets, and constellations by pointing your device at the sky. Offers offline functionality, multiple visual styles, and real-time ISS and meteor shower tracking. Includes Apple Watch and widget support.

**Highlights:** Live star and planet identification, Offline functionality, ISS and meteor shower tracking, Multiple visual sky styles, Apple Watch integration, 13 customizable widgets, 100% red night mode

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sky Map Premium Weekly | $1.99 | per 7 days |
| Sky Map Premium Monthly | $5.99 | per month |
| Sky Map Premium Yearly | $24.99 | per year |
| Sky Map Premium Lifetime | $79.99 | one-time |


### Open Planetarium

[App page](https://appshunter.io/ios/app/open-planetarium/id6799616519)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sky Map free?

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

### Is Open Planetarium free?

Open Planetarium is free to download, with no in-app purchases.

### Do Sky Map or Open Planetarium have ads?

Sky Map shows ads; Open Planetarium does not.

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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.*