# Primary Particle vs MoonWarRobot

The clearest difference is price: Primary Particle at Free against MoonWarRobot's $0.99. Primary Particle also leads on update cadence (every 8 months vs every 38 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Primary Particle is free to download; MoonWarRobot costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Primary Particle ships an update every 8 months, MoonWarRobot every 38 months. The most recent releases landed on November 6, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Primary Particle | MoonWarRobot |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/primary-particle/id886683283/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 38 months |
| Monetization | Paid | — |
| Size | 47 MB | 2 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Schmitt](https://appshunter.io/developer/585665935) | [Gianluca Natalini](https://appshunter.io/developer/348380792) |

## What reviewers say

### Primary Particle

[App page](https://appshunter.io/ios/app/primary-particle/id886683283)

A fun puzzle game where players help a scientist stabilize particles in an experiment. Catch particles of the correct color to keep the experiment going and increase your score. Beware of tricky particles that appear as your skill level rises.

**Highlights:** Particle stabilization gameplay, Color-matching mechanic, Increasing difficulty, Score-based progression, Experiment simulation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### MoonWarRobot

[App page](https://appshunter.io/ios/app/moonwarrobot/id6446401037)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Primary Particle free?

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

### Is MoonWarRobot free?

MoonWarRobot costs $0.99, with no in-app purchases.

### Do Primary Particle or MoonWarRobot have ads?

Neither Primary Particle nor MoonWarRobot shows ads.

### Which is updated more often, Primary Particle or MoonWarRobot?

Primary Particle ships an update every 8 months, and MoonWarRobot every 38 months. Most recently, Primary Particle was updated on November 6, 2026 and MoonWarRobot on November 12, 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.*