# Catalyst vs ChatAimi

The clearest difference is in-app purchases: Catalyst at none against ChatAimi's 3. ChatAimi's advantage is iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. ChatAimi sells 3 in-app purchases, starting at $3.99 per 7 days. Catalyst asks for nothing beyond the download.

## The numbers

| Metric | Catalyst | ChatAimi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/catalyst-ai-workspace/id6787500410/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Free | — |
| Size | 31 MB | 3 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [ObjectGraph LLC](https://appshunter.io/developer/284700705) | [OPAI LLC](https://appshunter.io/developer/1896422175) |

## What reviewers say

### Catalyst

[App page](https://appshunter.io/ios/app/catalyst-ai-workspace/id6787500410)

Access multiple leading AI models in one app, compare their responses, and generate images or videos. It also supports Python code execution and web searches with sources. Bring your own API keys for flexibility and control over your data.

**Highlights:** Access multiple AI models, Compare AI model responses, Generate images and video clips, Secure Python sandbox, Web search with sources, Attach files and photos, Persistent conversation memory

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

**In-app purchases:** none


### ChatAimi

[App page](https://appshunter.io/ios/app/chataimi-ai-chat-assistant/id6788751775)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| week membership | $3.99 | per 7 days |
| year membership | $6.99 | per year |
| lifetime membership | $9.99 | one-time |


## Frequently asked questions

### Is Catalyst free?

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

### Is ChatAimi free?

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

### Do Catalyst or ChatAimi have ads?

Neither Catalyst nor ChatAimi 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.*