# MATHICS vs KnowDay

The clearest difference is iOS requirement: MATHICS at 9.0 against KnowDay's 15.1. 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 | MATHICS | KnowDay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Size | 54 MB | 67 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jutta Schindler](https://appshunter.io/developer/1641467475) | [Daniel Brouwer](https://appshunter.io/developer/1870224712) |

## What reviewers say

### MATHICS

[App page](https://appshunter.io/ios/app/mathics/id6741525629)

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

**In-app purchases:** none


### KnowDay

[App page](https://appshunter.io/ios/app/knowday/id6758007504)

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

**In-app purchases:** none


## Frequently asked questions

### Is MATHICS free?

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

### Is KnowDay free?

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

### Do MATHICS or KnowDay have ads?

Neither MATHICS nor KnowDay 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.*