# AUDION vs NAPA

The clearest difference is rating: AUDION at 5.0 against NAPA's 4.5. AUDION also leads on iOS requirement (9.0 vs 12.0). NAPA's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

AUDION holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

## The numbers

| Metric | AUDION | NAPA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/audion-iphone/id1444383862/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/napa-star-map/id6475964108/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | Free |
| Size | 65 MB | 287 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stephen Casey](https://appshunter.io/developer/1444383861) | [National Astronomical Research Institute of Thailand (Public Organization)](https://appshunter.io/developer/1725468782) |

## What reviewers say

### AUDION

[App page](https://appshunter.io/ios/app/audion-iphone/id1444383862)

This utility app modernizes radio audience measurement by replacing outdated pager devices with smartphone technology. It aims to provide more robust marketing data for radio stations and media companies by expanding the sampling size and overcoming demographic challenges.

**Highlights:** Modernizes radio ratings reception, Replaces archaic pager devices, Strengthens marketing data, Expands sampling size, Overcomes demographic challenges, Enables broadcast radio competition

**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 AUDION free?

AUDION 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, AUDION or NAPA?

AUDION is rated higher. AUDION averages 5.0 out of 5 from 1 ratings, while NAPA averages 4.5 from 4 ratings.

### Do AUDION or NAPA have ads?

Neither AUDION nor NAPA shows ads.

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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.*