# NGC全天星空図鑑 メシエ・恒星を聴く天体データベース vs Apphemeride Precise Astronomy

The clearest difference is update cadence: NGC全天星空図鑑 メシエ・恒星を聴く天体データベース at every 3 days against Apphemeride Precise Astronomy's every 4 weeks. NGC全天星空図鑑 メシエ・恒星を聴く天体データベース also leads on iOS requirement (16.0 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. NGC全天星空図鑑 メシエ・恒星を聴く天体データベース sells 1 one-off in-app purchase and Apphemeride Precise Astronomy sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

NGC全天星空図鑑 メシエ・恒星を聴く天体データベース ships an update every 3 days, Apphemeride Precise Astronomy every 4 weeks. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | NGC全天星空図鑑 メシエ・恒星を聴く天体データベース | Apphemeride Precise Astronomy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 228 MB | 442 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SOICHIRO NISHI](https://appshunter.io/developer/1896732181) | [Csaba Lengyel](https://appshunter.io/developer/1888397396) |

## What reviewers say

### NGC全天星空図鑑 メシエ・恒星を聴く天体データベース

[App page](https://appshunter.io/ios/app/ngc/id6770306109)

This comprehensive astronomical catalog allows users to explore nebulae, star clusters, galaxies, and stars with Japanese voice guidance. It features a powerful search engine, customizable observation lists, and night mode for dark adaptation. Connect with telescopes for real-time sky mapping.

**Highlights:** Japanese voice search for celestial objects, Extensive database of nebulae, clusters, galaxies, and stars, Customizable observation lists, Night mode for dark adaptation, Telescope connectivity (beta), Detailed celestial object information

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NGC全天星空図鑑 フル機能解除 | $14.99 | one-time |


### Apphemeride Precise Astronomy

[App page](https://appshunter.io/ios/app/apphemeride-precise-astronomy/id6776641899)

This app provides precise astronomical data for sky analysis, including eclipses, Moon motion, and planetary positions. It offers location-based calculations and visual tools to understand celestial events and their visibility.

**Highlights:** Precise sky analysis, Eclipse and Moon motion tracking, Location-based celestial calculations, Horizon Tracker for celestial body movement, Detailed planetary and solar system data, Solar and lunar eclipse simulations, Configurable data display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day Trial | Free | one-time |
| Apphemeride Full Unlock | $49.99 | one-time |


## Frequently asked questions

### Is NGC全天星空図鑑 メシエ・恒星を聴く天体データベース free?

NGC全天星空図鑑 メシエ・恒星を聴く天体データベース is free to download, with in-app purchases available.

### Is Apphemeride Precise Astronomy free?

Apphemeride Precise Astronomy is free to download, with in-app purchases available.

### Do NGC全天星空図鑑 メシエ・恒星を聴く天体データベース or Apphemeride Precise Astronomy have ads?

Neither NGC全天星空図鑑 メシエ・恒星を聴く天体データベース nor Apphemeride Precise Astronomy shows ads.

### Which is updated more often, NGC全天星空図鑑 メシエ・恒星を聴く天体データベース or Apphemeride Precise Astronomy?

NGC全天星空図鑑 メシエ・恒星を聴く天体データベース ships an update every 3 days, and Apphemeride Precise Astronomy every 4 weeks. Most recently, NGC全天星空図鑑 メシエ・恒星を聴く天体データベース was updated on October 8, 2026 and Apphemeride Precise Astronomy on September 30, 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.*