# 剛剛在幹嘛：流水帳神器 vs Cat Diary

The clearest difference is in-app purchases: 剛剛在幹嘛：流水帳神器 at none against Cat Diary's 1. Cat Diary's advantage is update cadence (every 2 days vs every 5 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cat Diary sells 1 in-app purchase, starting at $0.99 per month. 剛剛在幹嘛：流水帳神器 asks for nothing beyond the download.

剛剛在幹嘛：流水帳神器 ships an update every 5 days, Cat Diary every 2 days. The most recent releases landed on October 30, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 剛剛在幹嘛：流水帳神器 | Cat Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 1 MB | 79 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fu Syuan Wang](https://appshunter.io/developer/1802485496) | [YI HSUAN SUNG](https://appshunter.io/developer/1791954601) |

## What reviewers say

### 剛剛在幹嘛：流水帳神器

[App page](https://appshunter.io/ios/app/id6744242050)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cat Diary

[App page](https://appshunter.io/ios/app/cat-diary/id6745091550)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $0.99 | per month |


## Frequently asked questions

### Is 剛剛在幹嘛：流水帳神器 free?

剛剛在幹嘛：流水帳神器 is free to download, with no in-app purchases.

### Is Cat Diary free?

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

### Do 剛剛在幹嘛：流水帳神器 or Cat Diary have ads?

Neither 剛剛在幹嘛：流水帳神器 nor Cat Diary shows ads.

### Which is updated more often, 剛剛在幹嘛：流水帳神器 or Cat Diary?

剛剛在幹嘛：流水帳神器 ships an update every 5 days, and Cat Diary every 2 days. Most recently, 剛剛在幹嘛：流水帳神器 was updated on October 30, 2026 and Cat Diary on October 4, 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.*