# AI Chat Assistant vs Zyna AI

The clearest difference is update cadence: AI Chat Assistant at every 2 weeks against Zyna AI's monthly. AI Chat Assistant also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Chat Assistant sells 2 in-app purchases, starting at $7.99 per 7 days and Zyna AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

AI Chat Assistant ships an update every 2 weeks, Zyna AI monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AI Chat Assistant | Zyna AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (41 ratings)](https://appshunter.io/ios/app/ai-chat-assistant-chatfast/id6746869573/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 168 MB | 74 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [dlabSolutions OÜ](https://appshunter.io/developer/1434236807) | [Qismat Ventures W.L.L](https://appshunter.io/developer/1871268039) |

## What reviewers say

### AI Chat Assistant

[App page](https://appshunter.io/ios/app/ai-chat-assistant-chatfast/id6746869573)

Access over 25 advanced AI models, including GPT-5.2, Gemini, and Claude, for diverse tasks like writing, coding, and image generation. Features include voice chat, PDF summarization, and specialized AI agents for personalized assistance.

**Highlights:** Access 25+ AI models, AI Image Generator (DALL-E 3), Voice Chat Assistant, AI Writing Assistant, Specialized AI Agents, Document & Web Tools, Creative Studio

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChatFast Pro - Weekly Plan | $7.99 | per 7 days |
| ChatFast Pro - Annual Plan | $79.99 | per year |


### Zyna AI

[App page](https://appshunter.io/ios/app/zyna-ai-chat-edit-create/id6779270527)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $9.99 | per month |
| Yearly Pro | $79.99 | per year |


## Frequently asked questions

### Is AI Chat Assistant free?

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

### Is Zyna AI free?

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

### Do AI Chat Assistant or Zyna AI have ads?

Neither AI Chat Assistant nor Zyna AI shows ads.

### Which is updated more often, AI Chat Assistant or Zyna AI?

AI Chat Assistant ships an update every 2 weeks, and Zyna AI monthly. Most recently, AI Chat Assistant was updated on November 5, 2026 and Zyna AI on October 31, 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.*