# NAPA vs PB Controller

NAPA and PB Controller are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

NAPA ships an update every 2 months, PB Controller every 3 months. The most recent releases landed on September 7, 2026 and June 20, 2026 respectively.

## The numbers

| Metric | NAPA | PB Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/napa-star-map/id6475964108/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 287 MB | 70 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Astronomical Research Institute of Thailand (Public Organization)](https://appshunter.io/developer/1725468782) | [Kunlasatree Sayuen](https://appshunter.io/developer/1856459350) |

## 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


### PB Controller

[App page](https://appshunter.io/ios/app/pb-controller/id6756103603)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NAPA free?

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

### Is PB Controller free?

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

### Do NAPA or PB Controller have ads?

Neither NAPA nor PB Controller shows ads.

### Which is updated more often, NAPA or PB Controller?

NAPA ships an update every 2 months, and PB Controller every 3 months. Most recently, NAPA was updated on September 7, 2026 and PB Controller on June 20, 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.*