# ChatEngine vs Ace

The clearest difference is review sentiment: ChatEngine at 100% against Ace's 33%. ChatEngine also leads on rating (4.7 vs 3.6) and ratings volume (163 vs 40). Ace's advantage is in-app purchases (none vs 11) and update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChatEngine sells 11 in-app purchases, starting at $7.99 per 7 days. Ace asks for nothing beyond the download.

ChatEngine holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 163 and 40 respectively. Written reviews point the same way: 100% of ChatEngine's written reviews are positive against 33% of Ace's.

ChatEngine ships an update every 3 weeks, Ace weekly. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ChatEngine | Ace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (163 ratings)](https://appshunter.io/ios/app/chatengine-ai-image-generator/id6754240438/reviews)** | [3.6 (40 ratings)](https://appshunter.io/ios/app/ace-chat-and-assistant/id6760768570/reviews) |
| Number of ratings | **163** | 40 |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Freemium | **Free** |
| Best chart rank | — | **#159** |
| Size | 61 MB | 59 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [AIONIX](https://appshunter.io/developer/1896514633) | [BrowseAI LLC](https://appshunter.io/developer/1886153131) |

## What reviewers say

### 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 |


### Ace

[App page](https://appshunter.io/ios/app/ace-chat-and-assistant/id6760768570)

**Currently charting:** #159 Top Free · Productivity (US App Store)

This AI-powered assistant helps you with a variety of tasks. Engage in conversations, generate images, and search the web. It offers voice input, image uploads, and saves your chat history for easy access.

**Highlights:** AI-powered chat, Image generation, Web search integration, Voice input, Image upload, Conversation history

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

**In-app purchases:** none


## Frequently asked questions

### Is ChatEngine free?

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

### Is Ace free?

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

### Which has better reviews, ChatEngine or Ace?

ChatEngine is rated higher. ChatEngine averages 4.7 out of 5 from 163 ratings, while Ace averages 3.6 from 40 ratings.

### Do ChatEngine or Ace have ads?

Neither ChatEngine nor Ace shows ads.

### Which is updated more often, ChatEngine or Ace?

ChatEngine ships an update every 3 weeks, and Ace weekly. Most recently, ChatEngine was updated on September 21, 2026 and Ace on September 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.*