# ChatMax AI vs Catalyst

The clearest difference is in-app purchases: Catalyst at none against ChatMax AI's 2. Catalyst also leads on update cadence (every 9 days vs every 3 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ChatMax AI sells 2 in-app purchases, starting at $4.99 per 7 days. Catalyst asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ChatMax AI against 5.0 for Catalyst. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ChatMax AI ships an update every 3 weeks, Catalyst every 9 days. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ChatMax AI | Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chatmax-ai-your-ai-assistant/id6445965744/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/catalyst-ai-workspace/id6787500410/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 31 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Serhii Blinov](https://appshunter.io/developer/1590823529) | [ObjectGraph LLC](https://appshunter.io/developer/284700705) |

## What reviewers say

### ChatMax AI

[App page](https://appshunter.io/ios/app/chatmax-ai-your-ai-assistant/id6445965744)

This AI companion offers instant assistance for writing, problem-solving, and creative tasks. Generate text, images, and gain intelligent insights to enhance productivity and streamline your workflow. No sign-up is required to start chatting.

**Highlights:** Instant AI assistance, Creative writing tool, Problem-solving and research, AI-powered image generation, Smart recommendations, No sign-up required

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $4.99 | per 7 days |
| 1 Month | $14.99 | per month |


### 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 ChatMax AI free?

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

### Is Catalyst free?

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

### Which has better reviews, ChatMax AI or Catalyst?

ChatMax AI and Catalyst are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ChatMax AI or Catalyst have ads?

Neither ChatMax AI nor Catalyst shows ads.

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

ChatMax AI ships an update every 3 weeks, and Catalyst every 9 days. Most recently, ChatMax AI was updated on October 17, 2026 and Catalyst on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*