# Dirac equation vs MyFormulae

The clearest difference is in-app purchases: Dirac equation at none against MyFormulae's 6. MyFormulae's advantage is iOS requirement (13.0 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. MyFormulae sells 6 one-off in-app purchases. Dirac equation asks for nothing beyond the download.

## The numbers

| Metric | Dirac equation | MyFormulae |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 5 MB | 22 MB |
| Requires iOS | 17 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Ricardo Castelejo](https://appshunter.io/developer/6787950949) |

## What reviewers say

### Dirac equation

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

**Features:** macOS Compatibility

**In-app purchases:** none


### MyFormulae

[App page](https://appshunter.io/ios/app/myformulae/id6787950946)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Matrix 6×6 | $2.49 | one-time |
| Upgrade to Matrix 8×8 | $2.49 | one-time |
| Upgrade to Matrix 10×10 | $2.49 | one-time |
| Unlock Matrix 8×8 | $4.99 | one-time |
| Upgrade to Matrix 10×10 | $5.00 | one-time |
| Unlock Matrix 10×10 | $7.49 | one-time |


## Frequently asked questions

### Is Dirac equation free?

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

### Is MyFormulae free?

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

### Do Dirac equation or MyFormulae have ads?

Neither Dirac equation nor MyFormulae 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.*