# Quadrus vs Mental Math Duel

The clearest difference is price: Mental Math Duel at Free against Quadrus's $0.99. Quadrus's advantage is iOS requirement (12.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Mental Math Duel is free to download; Quadrus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Quadrus | Mental Math Duel |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/quadrus/id773251281/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 62 months | — |
| Monetization | Free | — |
| Size | 7 MB | 1 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fovea](https://appshunter.io/developer/322843968) | [KeoGlobal](https://appshunter.io/developer/1708575837) |

## What reviewers say

### Quadrus

[App page](https://appshunter.io/ios/app/quadrus/id773251281)

Engage in a pure strategy board game where players place pieces to outmaneuver opponents. Block rivals and claim territory to win. Offers multiple game modes and AI difficulties for solo or local multiplayer challenges.

**Highlights:** Pure strategy gameplay, Block opponents, Secure board space, Three game modes (Duo, Classic 2, Classic 4), Challenging AI with 3 difficulty levels, Local multiplayer on a single device

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great game
- 👍 Fun game
- 👍 Strategic game
- 👍 Good adaptation
- 👍 Enjoyable gameplay

**What reviewers complain about**

- 😞 Not compatible with iOS
- 😞 Crashes frequently
- 😞 Game freezes
- 😞 Not updated
- 😞 Waste of money

**Reported bugs**

- iOS not updated
- Cannot download
- App not supported with iOS
- Stopped working with iOS
- Not compatible with current iOS

**Requested features**

- Update for latest iOS
- Refunds
- Online multiplayer
- Play with friends online
- Add option to play friends online


### Mental Math Duel

[App page](https://appshunter.io/ios/app/mental-math-duel/id6670703060)

**In-app purchases:** none


## Frequently asked questions

### Is Quadrus free?

Quadrus costs $0.99, with no in-app purchases.

### Is Mental Math Duel free?

Mental Math Duel is free to download, with no in-app purchases.

### Do Quadrus or Mental Math Duel have ads?

Neither Quadrus nor Mental Math Duel 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.*