# Astro Kit vs NAPA

The clearest difference is ratings volume: Astro Kit at 51 against NAPA's 4. Astro Kit also leads on review sentiment (87% vs 75%). NAPA's advantage is iOS requirement (12.0 vs 17.6). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for Astro Kit against 4.5 for NAPA. That said, the two scores are not equally well evidenced: Astro Kit has 51 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 87% of Astro Kit's written reviews are positive against 75% of NAPA's.

Astro Kit ships an update every 3 months, NAPA every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Astro Kit | NAPA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (51 ratings)](https://appshunter.io/ios/app/astro-kit/id432175465/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/napa-star-map/id6475964108/reviews) |
| Number of ratings | **51** | 4 |
| Positive reviews | **86.7% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 3 MB | 287 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jérôme Diaz](https://appshunter.io/developer/334987620) | [National Astronomical Research Institute of Thailand (Public Organization)](https://appshunter.io/developer/1725468782) |

## What reviewers say

### Astro Kit

[App page](https://appshunter.io/ios/app/astro-kit/id432175465)

This utility app assists in telescope setup by providing essential information like GPS coordinates and universal time. It also includes a compass and calculates the local hour angle for Polaris. Designed for amateur astronomers, it simplifies the alignment process.

**Highlights:** GPS coordinates, Compass functionality, Universal time display, Polaris local hour angle computation, Telescope alignment assistance

**Features:** macOS Compatibility

**In-app purchases:** none


### NAPA

[App page](https://appshunter.io/ios/app/napa-star-map/id6475964108)

Explore the night sky with this astronomy and planetarium app. Identify stars, constellations, and planets by pointing your device at the sky. Plan future observations by adjusting the time and date.

**Highlights:** Point and observe celestial objects, Star map functionality, Time adjustment for observation planning, Simulate planet positions, Locate specific celestial objects, Real images of deep sky objects

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Astro Kit free?

Astro Kit is free to download, with no in-app purchases.

### Is NAPA free?

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

### Which has better reviews, Astro Kit or NAPA?

Astro Kit is rated higher. Astro Kit averages 4.6 out of 5 from 51 ratings, while NAPA averages 4.5 from 4 ratings.

### Do Astro Kit or NAPA have ads?

Neither Astro Kit nor NAPA shows ads.

### Which is updated more often, Astro Kit or NAPA?

Astro Kit ships an update every 3 months, and NAPA every 2 months. Most recently, Astro Kit was updated on October 23, 2026 and NAPA 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.*