# 鴿鴿勤務手冊 vs When'd I

The clearest difference is price: 鴿鴿勤務手冊 at Free against When'd I's $3.99. 鴿鴿勤務手冊 also leads on update cadence (every 2 days vs every 4 days). When'd I's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

鴿鴿勤務手冊 is free to download; When'd I costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

鴿鴿勤務手冊 ships an update every 2 days, When'd I every 4 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | 鴿鴿勤務手冊 | When'd I |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/whend-i/id6801866888/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 90.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | — | Paid |
| Size | 19 MB | 34 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tzu-Ying Chan](https://appshunter.io/developer/6799665580) | [HyunWoo Lee](https://appshunter.io/developer/6791167449) |

## What reviewers say

### 鴿鴿勤務手冊

[App page](https://appshunter.io/ios/app/id6800798940)

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

**In-app purchases:** none


### When'd I

[App page](https://appshunter.io/ios/app/whend-i/id6801866888)

This app helps you track when you last performed specific tasks or activities. It provides a visual timeline, allows for photo and note attachments, and offers home screen widgets for quick logging and viewing overdue items. An optional daily nudge can remind you to log activities.

**Highlights:** Log last activity date, Visual timeline with time gaps, Attach photos and notes, Home screen widgets, Lock screen logging, Optional evening nudge, On-device data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is 鴿鴿勤務手冊 free?

鴿鴿勤務手冊 is free to download, with no in-app purchases.

### Is When'd I free?

When'd I costs $3.99, with no in-app purchases.

### Do 鴿鴿勤務手冊 or When'd I have ads?

鴿鴿勤務手冊 shows ads; When'd I does not.

### Which is updated more often, 鴿鴿勤務手冊 or When'd I?

鴿鴿勤務手冊 ships an update every 2 days, and When'd I every 4 days. Most recently, 鴿鴿勤務手冊 was updated on November 6, 2026 and When'd I on November 6, 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.*