# Primary Particle vs Picker Master

The clearest difference is in-app purchases: Primary Particle at none against Picker Master's 1. Primary Particle also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.2). Picker Master's advantage is update cadence (weekly vs every 8 months). On price and ads there is nothing between them.

Both are free to download. Picker Master sells 1 one-off in-app purchase. Primary Particle asks for nothing beyond the download.

Primary Particle ships an update every 8 months, Picker Master weekly. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Primary Particle | Picker Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/primary-particle/id886683283/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Paid | — |
| Size | 47 MB | 6 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Schmitt](https://appshunter.io/developer/585665935) | [martin zly](https://appshunter.io/developer/519822448) |

## 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


### Picker Master

[App page](https://appshunter.io/ios/app/picker-master/id6747830023)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game & Training | $1.99 | one-time |


## Frequently asked questions

### Is Primary Particle free?

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

### Is Picker Master free?

Picker Master is free to download, with in-app purchases available.

### Do Primary Particle or Picker Master have ads?

Neither Primary Particle nor Picker Master shows ads.

### Which is updated more often, Primary Particle or Picker Master?

Primary Particle ships an update every 8 months, and Picker Master weekly. Most recently, Primary Particle was updated on September 20, 2026 and Picker Master on September 16, 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.*