# AI Chat Assistant vs ChatEngine

The clearest difference is review sentiment: ChatEngine at 100% against AI Chat Assistant's 60%. ChatEngine also leads on rating (4.8 vs 4.4) and ratings volume (187 vs 14). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AI Chat Assistant sells 3 in-app purchases, starting at $8.99 per 7 days and ChatEngine sells 11 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ChatEngine holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: ChatEngine has 187 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 60% of AI Chat Assistant's written reviews are positive against 100% of ChatEngine's.

AI Chat Assistant ships an update fortnightly, ChatEngine every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | AI Chat Assistant | ChatEngine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (14 ratings)](https://appshunter.io/ios/app/ai-chat-assistant-mosaic-50/id6749076352/reviews) | **[4.8 (187 ratings)](https://appshunter.io/ios/app/chatengine-ai-image-generator/id6754240438/reviews)** |
| Number of ratings | 14 | **187** |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 79 MB | 61 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [ADS STATION LTD](https://appshunter.io/developer/1828709201) | [AIONIX](https://appshunter.io/developer/1896514633) |

## What reviewers say

### AI Chat Assistant

[App page](https://appshunter.io/ios/app/ai-chat-assistant-mosaic-50/id6749076352)

This AI-powered assistant leverages multiple advanced language models to help users with writing, research, document analysis, and content creation. It can draft emails, summarize web content and documents, generate images, and even assist with coding.

**Highlights:** AI writing companion, Web research assistant, Document summarization and translation, YouTube video summarizer, Text-to-image generator, Grammar and style editor, Social post creator

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $8.99 | per 7 days |
| Weekly no trial | $8.99 | per 7 days |
| Annual | $49.99 | per year |


### ChatEngine

[App page](https://appshunter.io/ios/app/chatengine-ai-image-generator/id6754240438)

This AI assistant leverages advanced models like GPT-5 and Gemini to help with writing, image generation, document summarization, and problem-solving. It offers a suite of tools for creative tasks, productivity boosts, and academic assistance.

**Highlights:** AI text generation, AI image generation, Document summarization and rewriting, Image-to-text conversion (OCR), AI homework helper, Resume and cover letter builder

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChatHub 1 Week Pro | $7.99 | per 7 days |
| ChatHub AI Plus-Weekly | $7.99 | per 7 days |
| ChatEngine 1 Week Pro | $9.99 | per 7 days |
| ChatHub AI Plus-Weekly | $9.99 | per 7 days |
| ChatHub 1 Week Pro | $19.99 | per 7 days |
| ChatHub AI Plus-Yearly | $39.99 | per year |
| ChatHub AI Plus-Yearly | $59.99 | per year |
| ChatEngine AI Plus-Yearly | $99.99 | per year |
| chatengine_60_credits | $4.99 | one-time |
| chatengine_200_credits | $14.99 | one-time |
| chatengine_500_credits | $29.99 | one-time |


## Frequently asked questions

### Is AI Chat Assistant free?

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

### Is ChatEngine free?

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

### Which has better reviews, AI Chat Assistant or ChatEngine?

ChatEngine is rated higher. AI Chat Assistant averages 4.4 out of 5 from 14 ratings, while ChatEngine averages 4.8 from 187 ratings.

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

Neither AI Chat Assistant nor ChatEngine shows ads.

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

AI Chat Assistant ships an update fortnightly, and ChatEngine every 3 weeks. Most recently, AI Chat Assistant was updated on October 30, 2026 and ChatEngine on October 30, 2026.

---

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