# Open Chat Inference vs Caty App

The clearest difference is in-app purchases: Open Chat Inference at none against Caty App's 1. Caty App's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Caty App sells 1 one-off in-app purchase. Open Chat Inference asks for nothing beyond the download.

## The numbers

| Metric | Open Chat Inference | Caty App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 14 MB | 71 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [Weiss Solutions LLC](https://appshunter.io/developer/1800998275) | [OU Catyonic](https://appshunter.io/developer/1863920797) |

## What reviewers say

### Open Chat Inference

[App page](https://appshunter.io/ios/app/open-chat-inference/id6758454746)

**Features:** macOS Compatibility

**In-app purchases:** none


### Caty App

[App page](https://appshunter.io/ios/app/caty-app/id6759576079)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 AI Messages | $0.99 | one-time |


## Frequently asked questions

### Is Open Chat Inference free?

Open Chat Inference is free to download, with no in-app purchases.

### Is Caty App free?

Caty App is free to download, with in-app purchases available.

### Do Open Chat Inference or Caty App have ads?

Neither Open Chat Inference nor Caty App 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.*