# Asteroid Close Approach vs Star Map Night Sky

The clearest difference is price: Star Map Night Sky at Free against Asteroid Close Approach's $1.99. Asteroid Close Approach's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Star Map Night Sky is free to download; Asteroid Close Approach costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Asteroid Close Approach ships an update every 4 weeks, Star Map Night Sky fortnightly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Asteroid Close Approach | Star Map Night Sky |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Paid | — |
| Size | 34 MB | 10 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arpacore B.V.](https://appshunter.io/developer/1441928570) | [tanzsoft](https://appshunter.io/developer/959660906) |

## What reviewers say

### Asteroid Close Approach

[App page](https://appshunter.io/ios/app/asteroid-close-approach/id1562569488)

Get real-time updates on near-Earth asteroid close approaches, including dates, distances, and impact energies. Access NASA's Sentry database for collision predictions and use a built-in calculator to estimate asteroid mass and energy.

**Highlights:** Real-time asteroid data on Apple Watch, Comprehensive approach details, Access to NASA's Sentry database, Asteroid mass and energy calculator, Collision monitoring for the next century

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Star Map Night Sky

[App page](https://appshunter.io/ios/app/star-map-night-sky-spaceutil/id6809397224)

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

**In-app purchases:** none


## Frequently asked questions

### Is Asteroid Close Approach free?

Asteroid Close Approach costs $1.99, with no in-app purchases.

### Is Star Map Night Sky free?

Star Map Night Sky is free to download, with no in-app purchases.

### Do Asteroid Close Approach or Star Map Night Sky have ads?

Star Map Night Sky shows ads; Asteroid Close Approach does not.

### Which is updated more often, Asteroid Close Approach or Star Map Night Sky?

Asteroid Close Approach ships an update every 4 weeks, and Star Map Night Sky fortnightly. Most recently, Asteroid Close Approach was updated on October 27, 2026 and Star Map Night Sky on October 24, 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.*