# Primary Particle vs Simple Spider

The clearest difference is price: Primary Particle at Free against Simple Spider's $1.99. Primary Particle also leads on ratings volume (3 vs 1). Simple Spider's advantage is update cadence (weekly vs every 8 months). On rating, ads, in-app purchases and monetization model there is nothing between them.

Primary Particle is free to download; Simple Spider costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Primary Particle against 5.0 for Simple Spider. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Primary Particle ships an update every 8 months, Simple Spider weekly. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Primary Particle | Simple Spider |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/primary-particle/id886683283/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/simple-spider-solitaire/id6777424959/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 47 MB | 29 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Stefan Schmitt](https://appshunter.io/developer/585665935) | [Daniel Diez Sanchez](https://appshunter.io/developer/6773829069) |

## 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


### Simple Spider

[App page](https://appshunter.io/ios/app/simple-spider-solitaire/id6777424959)

Enjoy a classic card game experience with large, easy-to-read cards and a clean interface. Play offline with no ads or subscriptions, and choose from three difficulty levels. Get unlimited hints and auto-complete to enhance your gameplay.

**Highlights:** No ads or video interruptions, One-time purchase, no subscriptions, 100% offline gameplay, Large print cards for readability, Clean and relaxing interface, 3 difficulty levels, Unlimited free hints

**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 Simple Spider free?

Simple Spider costs $1.99, with no in-app purchases.

### Which has better reviews, Primary Particle or Simple Spider?

Primary Particle and Simple Spider are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Primary Particle or Simple Spider have ads?

Neither Primary Particle nor Simple Spider shows ads.

### Which is updated more often, Primary Particle or Simple Spider?

Primary Particle ships an update every 8 months, and Simple Spider weekly. Most recently, Primary Particle was updated on November 6, 2026 and Simple Spider on November 10, 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.*