# Nyth AI vs Catalyst

The clearest difference is in-app purchases: Catalyst at none against Nyth AI's 1. Catalyst also leads on update cadence (every 9 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Nyth AI sells 1 one-off in-app purchase. Catalyst asks for nothing beyond the download.

Nyth AI ships an update every 6 weeks, Catalyst every 9 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Nyth AI | Catalyst |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | — | Free |
| Size | 28 MB | 31 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [ImmiGrader Tech LLC](https://appshunter.io/developer/1195466594) | [ObjectGraph LLC](https://appshunter.io/developer/284700705) |

## What reviewers say

### Nyth AI

[App page](https://appshunter.io/ios/app/nyth-ai/id6757325119)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nyth AI Pro | $5.99 | one-time |


### 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


## Frequently asked questions

### Is Nyth AI free?

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

### Is Catalyst free?

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

### Do Nyth AI or Catalyst have ads?

Neither Nyth AI nor Catalyst shows ads.

### Which is updated more often, Nyth AI or Catalyst?

Nyth AI ships an update every 6 weeks, and Catalyst every 9 days. Most recently, Nyth AI was updated on October 28, 2026 and Catalyst on October 24, 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.*