# Derryhale PS vs Armagh Planetarium AR

The clearest difference is update cadence: Armagh Planetarium AR at weekly against Derryhale PS's every 20 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Derryhale PS ships an update every 20 months, Armagh Planetarium AR weekly. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Derryhale PS | Armagh Planetarium AR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Weekly** |
| Monetization | — | Free |
| Size | 66 MB | 643 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BUSINESS SYSTEM SOLUTIONS (N.I.) LTD](https://appshunter.io/developer/549288322) | [Yellow Branding and Digital Media Ltd](https://appshunter.io/developer/1437792281) |

## What reviewers say

### Derryhale PS

[App page](https://appshunter.io/ios/app/derryhale-ps/id1123476149)

**Features:** macOS Compatibility

**In-app purchases:** none


### Armagh Planetarium AR

[App page](https://appshunter.io/ios/app/armagh-planetarium-ar/id1472005721)

Explore the Moon's surface and our Solar System in augmented reality. Discover facts about space missions and launch a virtual Saturn 5 rocket. This app offers an immersive educational experience for space enthusiasts.

**Highlights:** Explore Moon surface in AR, Discover Apollo landing facts, Explore Solar System and Universe, Launch virtual Saturn 5 rocket, Marker-based augmented reality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Derryhale PS free?

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

### Is Armagh Planetarium AR free?

Armagh Planetarium AR is free to download, with no in-app purchases.

### Do Derryhale PS or Armagh Planetarium AR have ads?

Neither Derryhale PS nor Armagh Planetarium AR shows ads.

### Which is updated more often, Derryhale PS or Armagh Planetarium AR?

Derryhale PS ships an update every 20 months, and Armagh Planetarium AR weekly. Most recently, Derryhale PS was updated on October 7, 2026 and Armagh Planetarium AR on October 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.*