# Even or odd Mental calculation vs Monsters Multiplication

The clearest difference is review sentiment: Even or odd Mental calculation at 100% against Monsters Multiplication's 50%. Monsters Multiplication's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Even or odd Mental calculation sells 1 one-off in-app purchase. Monsters Multiplication asks for nothing beyond the download.

## The numbers

| Metric | Even or odd Mental calculation | Monsters Multiplication |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 68 MB | 19 MB |
| Requires iOS | 15.0 | **8.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Iker Vazquez](https://appshunter.io/developer/1032978250) | [Fontventa, S.L.](https://appshunter.io/developer/666279804) |

## What reviewers say

### Even or odd Mental calculation

[App page](https://appshunter.io/ios/app/even-or-odd-mental-calculation/id1032978251)

Test your mental math skills by quickly determining if the result of an on-screen operation is even or odd. Earn more points for faster answers and challenge friends to see who has the quickest mind. The difficulty increases as you progress.

**Highlights:** Timed mental calculation challenges, Score tracking for personal bests, Speed-based scoring system, Increasing difficulty levels, Multiplayer comparison

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version upgrade | $0.99 | one-time |


### Monsters Multiplication

[App page](https://appshunter.io/ios/app/monsters-multiplication/id1118862346)

Make learning multiplication tables fun and engaging for children. This game offers a dynamic and effective method to reinforce basic math skills with timed challenges for each table.

**Highlights:** Practice multiplication tables individually, Timed responses for each question, Dynamic and effective learning method, Reinforces basic math knowledge, Designed for children

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Even or odd Mental calculation free?

Even or odd Mental calculation is free to download, with in-app purchases available.

### Is Monsters Multiplication free?

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

### Do Even or odd Mental calculation or Monsters Multiplication have ads?

Even or odd Mental calculation shows ads; Monsters Multiplication does not.

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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.*