# Lie group vs Discrete Math

The clearest difference is in-app purchases: Lie group at none against Discrete Math's 3. Discrete Math's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Discrete Math sells 3 in-app purchases, starting at $4.99 per 7 days. Lie group asks for nothing beyond the download.

## The numbers

| Metric | Lie group | Discrete Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Size | 6 MB | 39 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### Lie group

[App page](https://appshunter.io/ios/app/lie-group/id6759241380)

**In-app purchases:** none


### Discrete Math

[App page](https://appshunter.io/ios/app/discrete-math-discretica/id6761345113)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |
| Lifetime Premium | $64.99 | one-time |


## Frequently asked questions

### Is Lie group free?

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

### Is Discrete Math free?

Discrete Math is free to download, with in-app purchases available.

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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.*