# Asteroid Close Approach vs Moon

The clearest difference is update cadence: Asteroid Close Approach at every 4 weeks against Moon's every 26 months. Asteroid Close Approach also leads on iOS requirement (14.0 vs 17.6). Moon's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

Asteroid Close Approach costs $1.99 and Moon $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Asteroid Close Approach ships an update every 4 weeks, Moon every 26 months. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Asteroid Close Approach | Moon |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 26 months |
| Monetization | Paid | — |
| Size | 34 MB | 1.4 GB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 9+ |
| Developer | [Arpacore B.V.](https://appshunter.io/developer/1441928570) | [Alparslan Topbas](https://appshunter.io/developer/1130875171) |

## 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


### Moon

[App page](https://appshunter.io/ios/app/moon-apollo/id1585514583)

**Features:** 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 Moon free?

Moon costs $0.99, with no in-app purchases.

### Do Asteroid Close Approach or Moon have ads?

Neither Asteroid Close Approach nor Moon shows ads.

### Which is updated more often, Asteroid Close Approach or Moon?

Asteroid Close Approach ships an update every 4 weeks, and Moon every 26 months. Most recently, Asteroid Close Approach was updated on October 9, 2026 and Moon on October 17, 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.*