# PdfToolBox vs Chat Diary

The clearest difference is in-app purchases: PdfToolBox at none against Chat Diary's 3. PdfToolBox also leads on update cadence (every 4 days vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Chat Diary sells 3 one-off in-app purchases. PdfToolBox asks for nothing beyond the download.

PdfToolBox ships an update every 4 days, Chat Diary every 3 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PdfToolBox | Chat Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 5 MB | 6 MB |
| Requires iOS | **15.6** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Hidayet Balin](https://appshunter.io/developer/1861412496) | [娟 付](https://appshunter.io/developer/1838965385) |

## What reviewers say

### PdfToolBox

[App page](https://appshunter.io/ios/app/pdftoolbox/id6756569800)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chat Diary

[App page](https://appshunter.io/ios/app/chat-diary-ai-life-journal/id6760155407)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly | $2.99 | one-time |
| VIP Yearly | $19.99 | one-time |
| VIP Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is PdfToolBox free?

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

### Is Chat Diary free?

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

### Do PdfToolBox or Chat Diary have ads?

Neither PdfToolBox nor Chat Diary shows ads.

### Which is updated more often, PdfToolBox or Chat Diary?

PdfToolBox ships an update every 4 days, and Chat Diary every 3 weeks. Most recently, PdfToolBox was updated on October 15, 2026 and Chat Diary on October 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.*