# Integral function vs FitControl Pro

The clearest difference is update cadence: FitControl Pro at fortnightly against Integral function's every 4 months. Integral function's advantage is iOS requirement (13.0 vs 17.0). 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.

Integral function ships an update every 4 months, FitControl Pro fortnightly. The most recent releases landed on September 23, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Integral function | FitControl Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 29 MB | 28 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [ANDRII NAIDONOV](https://appshunter.io/developer/1689089068) | [Andrii Spirin](https://appshunter.io/developer/1842374910) |

## What reviewers say

### Integral function

[App page](https://appshunter.io/ios/app/integral-function/id6449439120)

**In-app purchases:** none


### FitControl Pro

[App page](https://appshunter.io/ios/app/fitcontrol-pro/id6753079536)

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

**In-app purchases:** none


## Frequently asked questions

### Is Integral function free?

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

### Is FitControl Pro free?

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

### Do Integral function or FitControl Pro have ads?

Neither Integral function nor FitControl Pro shows ads.

### Which is updated more often, Integral function or FitControl Pro?

Integral function ships an update every 4 months, and FitControl Pro fortnightly. Most recently, Integral function was updated on September 23, 2026 and FitControl Pro on September 27, 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.*