# Cogno vs ThreeAI

The clearest difference is iOS requirement: ThreeAI at 15.5 against Cogno's 26.0. 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.

## The numbers

| Metric | Cogno | ThreeAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Size | 58 MB | 8 MB |
| Requires iOS | 26.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Yuichi Matsuoka](https://appshunter.io/developer/1855259049) | [Jeffrey Lawrence](https://appshunter.io/developer/1879082478) |

## What reviewers say

### Cogno

[App page](https://appshunter.io/ios/app/cogno/id6755649034)

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

**In-app purchases:** none


### ThreeAI

[App page](https://appshunter.io/ios/app/threeai/id6759503039)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cogno free?

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

### Is ThreeAI free?

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

### Do Cogno or ThreeAI have ads?

Neither Cogno nor ThreeAI shows ads.

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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.*