# ChatOne AI Assistant & Chatbot vs RAYUL DIARY

The clearest difference is in-app purchases: RAYUL DIARY at none against ChatOne AI Assistant & Chatbot's 4. RAYUL DIARY also leads on update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChatOne AI Assistant & Chatbot sells 4 in-app purchases, starting at $4.99 per 7 days. RAYUL DIARY asks for nothing beyond the download.

ChatOne AI Assistant & Chatbot ships an update every 3 weeks, RAYUL DIARY every 10 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ChatOne AI Assistant & Chatbot | RAYUL DIARY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (16 ratings)](https://appshunter.io/ios/app/chatone-ai-assistant-and-chatbot/id6450134980/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Freemium | — |
| Size | 41 MB | 3 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Mehmet Ege Duzkaya](https://appshunter.io/developer/1691420464) | [YOUNGSOO KIM](https://appshunter.io/developer/1895715033) |

## What reviewers say

### ChatOne AI Assistant & Chatbot

[App page](https://appshunter.io/ios/app/chatone-ai-assistant-and-chatbot/id6450134980)

This AI companion helps you think, create, and explore with natural conversation, image generation, and web search. Analyze files, draft content, and sync across devices for a seamless productivity experience.

**Highlights:** Conversational AI, Image Creation & Editing, Web Search Integration, File & Image Analysis, Productivity Tools, Cross-Device Sync

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $19.99 | per month |
| Annual | $39.99 | per year |
| Life time access | $69.99 | one-time |


### RAYUL DIARY

[App page](https://appshunter.io/ios/app/rayul-diary/id6781319802)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChatOne AI Assistant & Chatbot free?

ChatOne AI Assistant & Chatbot is free to download, with in-app purchases available.

### Is RAYUL DIARY free?

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

### Do ChatOne AI Assistant & Chatbot or RAYUL DIARY have ads?

Neither ChatOne AI Assistant & Chatbot nor RAYUL DIARY shows ads.

### Which is updated more often, ChatOne AI Assistant & Chatbot or RAYUL DIARY?

ChatOne AI Assistant & Chatbot ships an update every 3 weeks, and RAYUL DIARY every 10 days. Most recently, ChatOne AI Assistant & Chatbot was updated on October 24, 2026 and RAYUL DIARY on October 15, 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.*