# Derivative vs Calculus Formulas

The clearest difference is in-app purchases: Derivative at none against Calculus Formulas's 3. Calculus Formulas's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculus Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Derivative asks for nothing beyond the download.

## The numbers

| Metric | Derivative | Calculus Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 37 MB | 48 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### Derivative

[App page](https://appshunter.io/ios/app/derivative-calculus/id1618969952)

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

**In-app purchases:** none


### Calculus Formulas

[App page](https://appshunter.io/ios/app/calculus-formulas-calcref/id6761394165)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| CalcRef Yearly Premium | $44.99 | per year |
| CalcRef Premium Lifetime | $74.99 | one-time |


## Frequently asked questions

### Is Derivative free?

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

### Is Calculus Formulas free?

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

### Do Derivative or Calculus Formulas have ads?

Derivative shows ads; Calculus Formulas 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.*