# Mosa AI vs ChatEngine

The clearest difference is review sentiment: ChatEngine at 100% against Mosa AI's 17%. ChatEngine also leads on rating (4.8 vs 4.5). Mosa AI's advantage is update cadence (every 6 days vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Mosa AI sells 5 in-app purchases, starting at $6.99 per 7 days and ChatEngine sells 10 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 4.5. Both are backed by a comparable volume of ratings — 374 and 189 respectively. Written reviews point the same way: 17% of Mosa AI's written reviews are positive against 100% of ChatEngine's.

Mosa AI ships an update every 6 days, ChatEngine every 3 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Mosa AI | ChatEngine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (374 ratings)](https://appshunter.io/ios/app/mosa-ai-chatbot-assistant/id6743208243/reviews) | **[4.8 (189 ratings)](https://appshunter.io/ios/app/chatengine-ai-image-generator/id6754240438/reviews)** |
| Number of ratings | **374** | 189 |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 102 MB | 61 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Joyolabs dijital hizmetler anonim sirketi](https://appshunter.io/developer/1825395353) | [AIONIX](https://appshunter.io/developer/1896514633) |

## What reviewers say

### Mosa AI

[App page](https://appshunter.io/ios/app/mosa-ai-chatbot-assistant/id6743208243)

This app offers a diverse range of AI tools in a single interface. Engage in conversations with specialized AI experts, interact with fictional characters, and find practical solutions for sustainable living and daily tasks.

**Highlights:** Chat with AI Experts, Meet Fantasy Companions, Live Sustainably (DIY, Repair), Discover Diverse AI Tools, Nutritional Guidance, Creative Roleplay

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $6.99 | per 7 days |
| Weekly Access | $7.99 | per 7 days |
| Generates 3 AI Videos | $2.99 | one-time |
| Generates 5 AI Videos | $6.99 | one-time |
| Generates 10 AI Videos | $9.99 | one-time |


### 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 (10)**

| 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 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 Mosa AI free?

Mosa AI 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, Mosa AI or ChatEngine?

ChatEngine is rated higher. Mosa AI averages 4.5 out of 5 from 374 ratings, while ChatEngine averages 4.8 from 189 ratings.

### Do Mosa AI or ChatEngine have ads?

Neither Mosa AI nor ChatEngine shows ads.

### Which is updated more often, Mosa AI or ChatEngine?

Mosa AI ships an update every 6 days, and ChatEngine every 3 weeks. Most recently, Mosa AI was updated on November 4, 2026 and ChatEngine on November 5, 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.*