# Sidekick vs ChatEngine

The clearest difference is ratings volume: ChatEngine at 163 against Sidekick's 8. ChatEngine also leads on rating (4.7 vs 4.5) and iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Sidekick sells 6 in-app purchases, starting at $3.99 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, 4.7 against 4.5. That said, the two scores are not equally well evidenced: ChatEngine has 163 ratings behind it against 8, so its average is the more settled of the two.

Sidekick ships an update every 11 days, ChatEngine every 3 weeks. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sidekick | ChatEngine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/sidekick-ai-chat-bot/id6479694651/reviews) | **[4.7 (163 ratings)](https://appshunter.io/ios/app/chatengine-ai-image-generator/id6754240438/reviews)** |
| Number of ratings | 8 | **163** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 94 MB | 61 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [SonderSpot OU](https://appshunter.io/developer/1671574323) | [AIONIX](https://appshunter.io/developer/1896514633) |

## What reviewers say

### Sidekick

[App page](https://appshunter.io/ios/app/sidekick-ai-chat-bot/id6479694651)

This AI assistant leverages advanced models like GPT-5.4 and Gemini to provide instant answers, engage in natural conversations, and act as a versatile virtual helper for work, study, and daily tasks. It offers interactive AI characters, voice input, and tools for writing, summarizing documents, and generating images.

**Highlights:** Advanced AI models (GPT-5.4, Gemini), Interactive AI characters, Virtual assistant for tasks, Voice input and speech recognition, AI writing and editing tools, Document summarization and OCR, AI image generation

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $3.99 | per 7 days |
| PRO Weekly Trial | $7.99 | per 7 days |
| PRO Monthly | $19.99 | per month |
| PRO Yearly | $29.99 | per year |
| PRO Yearly | $39.99 | per year |
| PRO Yearly | $59.99 | 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 Sidekick free?

Sidekick 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, Sidekick or ChatEngine?

ChatEngine is rated higher. Sidekick averages 4.5 out of 5 from 8 ratings, while ChatEngine averages 4.7 from 163 ratings.

### Do Sidekick or ChatEngine have ads?

Neither Sidekick nor ChatEngine shows ads.

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

Sidekick ships an update every 11 days, and ChatEngine every 3 weeks. Most recently, Sidekick was updated on October 14, 2026 and ChatEngine on October 17, 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.*