# CHALK ビジネス専用チャット vs PonAI AI Diary

The clearest difference is ads: CHALK ビジネス専用チャット at none against PonAI AI Diary's shown. CHALK ビジネス専用チャット also leads on iOS requirement (13.0 vs 17.6). PonAI AI Diary's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CHALK ビジネス専用チャット ships an update every 5 weeks, PonAI AI Diary every 2 weeks. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CHALK ビジネス専用チャット | PonAI AI Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 45 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kweather Japan Co.,Ltd.](https://appshunter.io/developer/418296281) | [BYNET](https://appshunter.io/developer/1811735131) |

## What reviewers say

### CHALK ビジネス専用チャット

[App page](https://appshunter.io/ios/app/chalk/id917242426)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


### PonAI AI Diary

[App page](https://appshunter.io/ios/app/ponai-ai-diary/id6740941148)

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

**In-app purchases:** none


## Frequently asked questions

### Is CHALK ビジネス専用チャット free?

CHALK ビジネス専用チャット is free to download, with no in-app purchases.

### Is PonAI AI Diary free?

PonAI AI Diary is free to download, with no in-app purchases.

### Do CHALK ビジネス専用チャット or PonAI AI Diary have ads?

PonAI AI Diary shows ads; CHALK ビジネス専用チャット does not.

### Which is updated more often, CHALK ビジネス専用チャット or PonAI AI Diary?

CHALK ビジネス専用チャット ships an update every 5 weeks, and PonAI AI Diary every 2 weeks. Most recently, CHALK ビジネス専用チャット was updated on October 14, 2026 and PonAI AI Diary on October 25, 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.*