# Simurgh App vs Quantum

The clearest difference is in-app purchases: Simurgh App at none against Quantum's 6. Simurgh App also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Quantum sells 3 one-off in-app purchases. Simurgh App asks for nothing beyond the download.

Simurgh App ships an update every 2 months, Quantum every 5 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Simurgh App | Quantum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (150 ratings)](https://appshunter.io/ios/app/quantum-particle-life/id6504465371/reviews)** |
| Number of ratings | — | **150** |
| Positive reviews | — | 81.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 382 MB | 32 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dennis Rudolph](https://appshunter.io/developer/1412017774) | [GEORGY OSTROBROD](https://appshunter.io/developer/1875865758) |

## What reviewers say

### Simurgh App

[App page](https://appshunter.io/ios/app/simurgh-app/id6443500109)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quantum

[App page](https://appshunter.io/ios/app/quantum-particle-life/id6504465371)

Explore the hidden world of particles with a real-time simulator. Model up to 10,000 particles and experiment with natural phenomena like crystallization and orbital mechanics. Customize interactions and visualize results dynamically.

**Highlights:** Real-time particle simulation, Model up to 10,000 particles, Simulate natural phenomena, Four distinct particle classes, Customizable rules editor, Dynamic visualizations, Interactive control

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer tip | $1.99 | one-time |
| Developer tip | $3.99 | one-time |
| Developer tip | $5.99 | one-time |


## Frequently asked questions

### Is Simurgh App free?

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

### Is Quantum free?

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

### Do Simurgh App or Quantum have ads?

Neither Simurgh App nor Quantum shows ads.

### Which is updated more often, Simurgh App or Quantum?

Simurgh App ships an update every 2 months, and Quantum every 5 weeks. Most recently, Simurgh App was updated on October 18, 2026 and Quantum on October 24, 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.*