# QSI vs Bernstein

The clearest difference is iOS requirement: QSI at 11.0 against Bernstein's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | QSI | Bernstein |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (61 ratings)](https://appshunter.io/ios/app/qsi/id6447522381/reviews)** | — |
| Number of ratings | **61** | — |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Free | — |
| Size | 45 MB | 0 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Get Konversed Pty Ltd](https://appshunter.io/developer/670327904) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### QSI

[App page](https://appshunter.io/ios/app/qsi/id6447522381)

This app connects a global community focused on shaping future quantum technologies and societal progress. It offers educational resources and onboarding materials to navigate the Quantum Financial System and Quantum Matrix on the Stellar blockchain. Members can join local groups to collaborate on projects and philanthropic endeavors.

**Highlights:** Quantum technology education, Quantum Financial System (QFS) exploration, Quantum Matrix (QM) integration, Stellar blockchain ecosystem, Global community networking, Philanthropic project collaboration, Sovereign contributor empowerment

**Features:** macOS Compatibility

**In-app purchases:** none


### Bernstein

[App page](https://appshunter.io/ios/app/bernstein-vazirani-algorithm/id6457204574)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QSI free?

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

### Is Bernstein free?

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

### Do QSI or Bernstein have ads?

Neither QSI nor Bernstein 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.*