# Functions and integrals vs Integral Calculator app

The clearest difference is monetization model: Integral 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 fortnightly) 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 Integral 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, Integral Calculator app fortnightly. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Functions and integrals | Integral Calculator app |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 44 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 |


### Integral Calculator app

[App page](https://appshunter.io/ios/app/integral-calculator-app/id1624033320)

This application simplifies calculus by providing tools to solve various types of integrals. It offers step-by-step guidance, practice quizzes, and calculators for double integrals, triple integrals, and methods like shell and washer. It's designed to help users understand and solve complex calculus problems efficiently.

**Highlights:** Double integral calculator, Triple integral calculator, Shell method calculator, Washer method calculator, Practice quizzes, Step-by-step guidance

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Integral Calc Premium User | $3.99 | one-time |


## Frequently asked questions

### Is Functions and integrals free?

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

### Is Integral Calculator app free?

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

### Do Functions and integrals or Integral Calculator app have ads?

Neither Functions and integrals nor Integral Calculator app shows ads.

### Which is updated more often, Functions and integrals or Integral Calculator app?

Functions and integrals ships an update every 5 days, and Integral Calculator app fortnightly. Most recently, Functions and integrals was updated on September 28, 2026 and Integral 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.*