# NAPA vs ARSA ENIGMA

The clearest difference is rating: ARSA ENIGMA at 5.0 against NAPA's 4.5. ARSA ENIGMA also leads on update cadence (every 3 days vs every 2 months) and review sentiment (100% vs 75%). 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.

ARSA ENIGMA holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 75% of NAPA's written reviews are positive against 100% of ARSA ENIGMA's.

NAPA ships an update every 2 months, ARSA ENIGMA every 3 days. Both last shipped on November 4, 2026.

## The numbers

| Metric | NAPA | ARSA ENIGMA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/napa-star-map/id6475964108/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arsa-enigma/id6504475118/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 287 MB | 20 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [National Astronomical Research Institute of Thailand (Public Organization)](https://appshunter.io/developer/1725468782) | [Arsa Tangchitsomkit](https://appshunter.io/developer/908885655) |

## What reviewers say

### 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


### ARSA ENIGMA

[App page](https://appshunter.io/ios/app/arsa-enigma/id6504475118)

Securely encrypt and decrypt files for private sharing. Protect your data from leaks, fraud, and scams with this utility app. It offers multiple encryption levels for varying device capabilities.

**Highlights:** File encryption, File decryption, Secure data sharing, Private key management, Bilinear encryption (2 layers), Trilinear encryption (3 layers)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NAPA free?

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

### Is ARSA ENIGMA free?

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

### Which has better reviews, NAPA or ARSA ENIGMA?

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

### Do NAPA or ARSA ENIGMA have ads?

Neither NAPA nor ARSA ENIGMA shows ads.

### Which is updated more often, NAPA or ARSA ENIGMA?

NAPA ships an update every 2 months, and ARSA ENIGMA every 3 days. Most recently, NAPA was updated on November 4, 2026 and ARSA ENIGMA on November 4, 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.*