# Functions and integrals vs Derivative Calculator App

The clearest difference is monetization model: Derivative Calculator App at free against Functions and integrals's free with in-app purchases. Functions and integrals's advantage is update cadence (every 5 days vs every 2 weeks) and iOS requirement (9.0 vs 12.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Functions and integrals sells 2 one-off in-app purchases and Derivative Calculator App sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Functions and integrals ships an update every 5 days, Derivative Calculator App every 2 weeks. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Functions and integrals | Derivative Calculator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/derivative-calculator-app/id1624696394/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 35 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maxime Haeyaert](https://appshunter.io/developer/1274130669) | [talha rehman](https://appshunter.io/developer/1573036144) |

## What reviewers say

### Functions and integrals

[App page](https://appshunter.io/ios/app/functions-and-integrals/id1331081431)

This app quickly resolves integrals using a powerful algorithm. It calculates integrals of functions and composite functions, providing detailed steps for easy exercise solving and calculation checking. Simply input your function and let the app handle the rest.

**Highlights:** Integral calculation, Composite function integration, Detailed calculation steps, Quick problem solving, Easy function input

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising | $0.99 | one-time |
| Details and Formulas | $1.99 | one-time |


### Derivative Calculator App

[App page](https://appshunter.io/ios/app/derivative-calculator-app/id1624696394)

Easily solve derivatives of any function with step-by-step solutions. Practice calculus concepts with quizzes and use the solver offline. Improve your understanding and exam preparation.

**Highlights:** Derivative calculation for any function, Step-by-step solution explanations, Offline functionality, Practice quizzes for skill improvement, Accurate derivative solver

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gets Ads Free Version | $2.99 | one-time |


## Frequently asked questions

### Is Functions and integrals free?

Functions and integrals is free to download, with in-app purchases available.

### Is Derivative Calculator App free?

Derivative Calculator App is free to download, with in-app purchases available.

### Do Functions and integrals or Derivative Calculator App have ads?

Neither Functions and integrals nor Derivative Calculator App shows ads.

### Which is updated more often, Functions and integrals or Derivative Calculator App?

Functions and integrals ships an update every 5 days, and Derivative Calculator App every 2 weeks. Most recently, Functions and integrals was updated on September 28, 2026 and Derivative Calculator App on October 15, 2026.

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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.*