# Derive vs ReCalculus

The clearest difference is iOS requirement: ReCalculus at 16.6 against Derive's 18.0. 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 | Derive | ReCalculus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 14 MB | 48 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chung Law](https://appshunter.io/developer/1698876420) | [Supparsorn Wantarnagon](https://appshunter.io/developer/1800705021) |

## What reviewers say

### Derive

[App page](https://appshunter.io/ios/app/derive-a-blitz/id6739738006)

**Features:** macOS Compatibility

**In-app purchases:** none


### ReCalculus

[App page](https://appshunter.io/ios/app/recalculus/id6749523459)

**In-app purchases:** none


## Frequently asked questions

### Is Derive free?

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

### Is ReCalculus free?

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

### Do Derive or ReCalculus have ads?

Neither Derive nor ReCalculus 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.*