# Integral function vs Thunder Clan

The clearest difference is iOS requirement: Integral function at 13.0 against Thunder Clan's 15.6. On price, update cadence, ads and in-app purchases 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, Thunder Clan every 8 months. The most recent releases landed on September 8, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Integral function | Thunder Clan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Size | 29 MB | 63 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [ANDRII NAIDONOV](https://appshunter.io/developer/1689089068) | [Artem Sunduchkov](https://appshunter.io/developer/717659388) |

## What reviewers say

### Integral function

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

**In-app purchases:** none


### Thunder Clan

[App page](https://appshunter.io/ios/app/thunder-clan/id6746531993)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Integral function free?

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

### Is Thunder Clan free?

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

### Do Integral function or Thunder Clan have ads?

Neither Integral function nor Thunder Clan shows ads.

### Which is updated more often, Integral function or Thunder Clan?

Integral function ships an update every 4 months, and Thunder Clan every 8 months. Most recently, Integral function was updated on September 8, 2026 and Thunder Clan on September 23, 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.*