# 共念 ChantCounter vs PR Diary

The clearest difference is ads: PR Diary at none against 共念 ChantCounter's shown. PR Diary also leads on update cadence (every 4 days vs every 6 months). 共念 ChantCounter's advantage is iOS requirement (15.0 vs 18.5). 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.

共念 ChantCounter ships an update every 6 months, PR Diary every 4 days. Both last shipped on October 9, 2026.

## The numbers

| Metric | 共念 ChantCounter | PR Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 4 days** |
| Size | 18 MB | 8 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [CHUN HUNG CHEN](https://appshunter.io/developer/1888442322) | [Yung Wen Cheng](https://appshunter.io/developer/1851202446) |

## What reviewers say

### 共念 ChantCounter

[App page](https://appshunter.io/ios/app/chantcounter/id6761258412)

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

**In-app purchases:** none


### PR Diary

[App page](https://appshunter.io/ios/app/pr-diary/id6761694656)

**In-app purchases:** none


## Frequently asked questions

### Is 共念 ChantCounter free?

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

### Is PR Diary free?

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

### Do 共念 ChantCounter or PR Diary have ads?

共念 ChantCounter shows ads; PR Diary does not.

### Which is updated more often, 共念 ChantCounter or PR Diary?

共念 ChantCounter ships an update every 6 months, and PR Diary every 4 days. Most recently, 共念 ChantCounter was updated on October 9, 2026 and PR Diary on October 9, 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.*