# Dirac equation vs Learn Rutooro

The clearest difference is in-app purchases: Dirac equation at none against Learn Rutooro's 2. Dirac equation also leads on ads (none vs shown). Learn Rutooro's advantage is iOS requirement (14.0.0 vs 17). On price and device support there is nothing between them.

Both are free to download. Learn Rutooro sells 2 in-app purchases, starting at $2.90 per month. Dirac equation asks for nothing beyond the download.

## The numbers

| Metric | Dirac equation | Learn Rutooro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 months |
| Size | 5 MB | 61 MB |
| Requires iOS | 17 | **14.0.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [JULIAN BUSINGE](https://appshunter.io/developer/1826761461) |

## What reviewers say

### Dirac equation

[App page](https://appshunter.io/ios/app/dirac-equation/id6739155551)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Rutooro

[App page](https://appshunter.io/ios/app/learn-rutooro/id6748641711)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.90 | per month |
| Yearly | $27.90 | per year |


## Frequently asked questions

### Is Dirac equation free?

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

### Is Learn Rutooro free?

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

### Do Dirac equation or Learn Rutooro have ads?

Learn Rutooro shows ads; Dirac equation 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.*