# START Summit vs causa

The clearest difference is price: START Summit at Free against causa's $119.00. START Summit also leads on iOS requirement (15.6 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

START Summit is free to download; causa costs $119.00 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 26, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | START Summit | causa |
| --- | --- | --- |
| Price | **Free** | $119.00 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 101 MB | 45 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [START Global](https://appshunter.io/developer/1452233109) | [Black Forest AI GmbH](https://appshunter.io/developer/1777787159) |

## What reviewers say

### START Summit

[App page](https://appshunter.io/ios/app/start-summit/id6445817380)

**Features:** macOS Compatibility

**In-app purchases:** none


### causa

[App page](https://appshunter.io/ios/app/causa/id6737765822)

**In-app purchases:** none


## Frequently asked questions

### Is START Summit free?

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

### Is causa free?

causa costs $119.00, with no in-app purchases.

### Do START Summit or causa have ads?

Neither START Summit nor causa shows ads.

### Which is updated more often, START Summit or causa?

START Summit ships an update every 3 months, and causa every 3 months. Most recently, START Summit was updated on September 26, 2026 and causa on October 2, 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.*