# Kingbox. vs AI Assistant kun

The clearest difference is review sentiment: AI Assistant kun at 100% against Kingbox.'s 43%. AI Assistant kun also leads on ads (none vs shown) and ratings volume (742 vs 2). Kingbox.'s advantage is in-app purchases (none vs 13) and rating (5.0 vs 4.7). On price and device support there is nothing between them.

Both are free to download. AI Assistant kun sells 11 in-app purchases, starting at $2.99 per 7 days. Kingbox. asks for nothing beyond the download.

Kingbox. holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: AI Assistant kun has 742 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 43% of Kingbox.'s written reviews are positive against 100% of AI Assistant kun's, so the app with the better star average is not the one people write more warmly about.

Kingbox. ships an update monthly, AI Assistant kun every 11 days. Both last shipped on October 27, 2026.

## The numbers

| Metric | Kingbox. | AI Assistant kun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kingbox/id1503328513/reviews)** | [4.7 (742 ratings)](https://appshunter.io/ios/app/ai-assistant-kun-chat-essay/id1670102254/reviews) |
| Number of ratings | 2 | **742** |
| Positive reviews | 43.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 171 MB | 140 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [DOM Inc.](https://appshunter.io/developer/495102743) | [Yukito Shibuya](https://appshunter.io/developer/1451047215) |

## What reviewers say

### Kingbox.

[App page](https://appshunter.io/ios/app/kingbox/id1503328513)

This app offers robust file management, allowing you to organize, view, and share documents, videos, and images offline. It supports various file formats and includes features like password-protected decompression and background playback for media.

**Highlights:** File management (create, copy, rename, protect, export), Document viewing (PDF, Office files), Save and browse video, audio, and image files, Decompress zip/rar files (with password support), Background playback and playlist creation, Sleep timer and playback speed control

**Features:** Vision Pro support

**In-app purchases:** none


### AI Assistant kun

[App page](https://appshunter.io/ios/app/ai-assistant-kun-chat-essay/id1670102254)

This AI chat application assists with a wide range of tasks, from work and study to personal advice and creative endeavors. It offers 24/7 support and uses advanced natural language processing for intuitive conversations. No registration is required to start using its features.

**Highlights:** AI-powered chat and writing assistance, Support for work and study tasks, Personal advice and life problem-solving, Creative inspiration for writers and musicians, 24/7 availability, No registration required

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| スタンダードプラン | $2.99 | per 7 days |
| スタンダードプラン | $3.99 | per 7 days |
| スタンダードプラン | $7.99 | per month |
| スタンダードプラン | $8.99 | per month |
| スタンダードプラン | $19.99 | per 3 months |
| スタンダードプラン | $19.99 | per 3 months |
| プレミアムプラン | $19.99 | per month |
| スタンダードプラン | $49.99 | per year |
| スタンダードプラン | $59.99 | per year |
| スタンダードプラン | $69.99 | per year |
| プレミアムプラン | $199.99 | per year |


## Frequently asked questions

### Is Kingbox. free?

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

### Is AI Assistant kun free?

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

### Which has better reviews, Kingbox. or AI Assistant kun?

Kingbox. is rated higher. Kingbox. averages 5.0 out of 5 from 2 ratings, while AI Assistant kun averages 4.7 from 742 ratings.

### Do Kingbox. or AI Assistant kun have ads?

Kingbox. shows ads; AI Assistant kun does not.

### Which is updated more often, Kingbox. or AI Assistant kun?

Kingbox. ships an update monthly, and AI Assistant kun every 11 days. Most recently, Kingbox. was updated on October 27, 2026 and AI Assistant kun on October 27, 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.*