# Regular Expressions Basics vs Numerithm

The clearest difference is in-app purchases: Regular Expressions Basics at none against Numerithm's 1. Numerithm's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Numerithm sells 1 one-off in-app purchase. Regular Expressions Basics asks for nothing beyond the download.

## The numbers

| Metric | Regular Expressions Basics | Numerithm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Daily | — |
| Size | 38 MB | 32 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [AFTW LLC](https://appshunter.io/developer/1886356149) | [Space 64 LLC](https://appshunter.io/developer/1769185943) |

## What reviewers say

### Regular Expressions Basics

[App page](https://appshunter.io/ios/app/regular-expressions-basics/id6769249870)

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

**In-app purchases:** none


### Numerithm

[App page](https://appshunter.io/ios/app/numerithm-math-and-coding/id6790628328)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Unlock | $5.99 | one-time |


## Frequently asked questions

### Is Regular Expressions Basics free?

Regular Expressions Basics is free to download, with no in-app purchases.

### Is Numerithm free?

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

### Do Regular Expressions Basics or Numerithm have ads?

Regular Expressions Basics shows ads; Numerithm 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.*