# ISUD Zero vs Qubric

The clearest difference is price: Qubric at Free against ISUD Zero's $0.99. ISUD Zero's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Qubric is free to download; ISUD Zero costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ISUD Zero | Qubric |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qubric/id6772515889/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Free |
| Size | 119 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Suwitcha Sugthana](https://appshunter.io/developer/372726303) | [VIKAS TOMAR](https://appshunter.io/developer/6772515891) |

## What reviewers say

### ISUD Zero

[App page](https://appshunter.io/ios/app/isud-zero/id6765926399)

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

**In-app purchases:** none


### Qubric

[App page](https://appshunter.io/ios/app/qubric/id6772515889)

Engage with a minimalist puzzle game designed to build intuition about quantum computing. Solve circuits by manipulating gates, comparing probabilities, and matching targets. Progress through a journey, tackle daily challenges, and earn rewards while enjoying a clean, ad-free experience.

**Highlights:** Quantum logic puzzles, Daily challenge with streak tracking, XP, levels, and badges, Visual state comparison, Cloud progress sync, In-app privacy controls

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISUD Zero free?

ISUD Zero costs $0.99, with no in-app purchases.

### Is Qubric free?

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

### Do ISUD Zero or Qubric have ads?

Neither ISUD Zero nor Qubric shows ads.

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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.*