# WhenNote: Countdown & Days — Anniversary, D-Day, Date Calc

> Anniversary, D-Day, Date Calc (iPhone/iPad app by Hank Wang.)

- Source: https://appshunter.io/ios/app/whennote-countdown-and-days/id6800213365 (this page in markdown: same URL + `.md`)
- Developer: [Hank Wang](https://appshunter.io/developer/6800213367)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 22 MB
- Languages: American English, Japanese, Chinese (Traditional, Taiwan)
- Released: 2026-08-27
- Data updated: 2026-09-14
- User reviews in markdown: https://appshunter.io/ios/app/whennote-countdown-and-days/id6800213365/reviews.md

## What is WhenNote?

WhenNote keeps important dates clear and easy to revisit. Organize meaningful events in flexible notebooks, understand how much time has passed or remains, and handle everyday date calculations in one focused app.

Features:

• Organize dates into separate notebooks
• Record names, descriptions, start dates, and end dates
• See elapsed, upcoming, and remaining time at a glance
• Calculate and total date intervals
• Add or subtract years, months, days, hours, and minutes
• Reorder notebooks and entries to match your workflow
• Optionally back up and restore through your private Google Drive app-data area
• Use the app in English, Traditional Chinese, or Japanese

Your notes are stored on your device by default. When Google Drive backup is enabled, WhenNote requests access only to its own hidden app-data area—not your other Drive files.

No ads. No tracking. No unnecessary account required.


## Version history (last 2 releases)

### 1.1 — 2026-09-09

Refinements and stability improvements throughout the app.

### 1.0.1 — 2026-08-27

No release notes.

## More apps by Hank Wang

- [讀匣](https://appshunter.io/ios/app/id6800545927)

All apps by Hank Wang: https://appshunter.io/developer/6800213367

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-14.*