When'd I is made and published by HyunWoo Lee. AppBrain is an independent app data site and isn't affiliated with HyunWoo Lee. The app name, icon, screenshots and description belong to HyunWoo Lee and are shown as published on the App Store.
AppBrain's verdict
NewTop 10- Rating on App Store
- 1.00
- 1 ratings
- Last updated
- October 28, 2026
- Size
- 30.7 MB
When'd I came out 76 days ago. It doesn't have enough ratings yet to judge what users think. Its best ranking is #8 in Top Paid, Productivity in South Korea.
User feedback
Ratings and reviews on the App StoreComments on When'd I for iOS
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Store listing
By HyunWoo Lee, from the App Store
Description by HyunWoo Lee Written by the developer, not by AppBrain. Click to read.
"When did I last wash the sheets?"
"When did I change the water filter?"
"When did I last call my parents?"
Some things you can never remember. When'd I records just the date you did them.
No goals, no nagging notifications, no checklists. Tap once and it's logged as today.
■ See how long it's been
Every item shows the days since you last did it.
The longer it's been, the more it stands out.
■ A timeline where distance means time
The space between dots is the actual gap between dates.
Busy stretches look dense. The months you skipped show up as empty space.
■ Photos and notes
Attach one photo and a short note to any record.
■ Widgets and Lock Screen
Check what's overdue from your Home Screen, and log without opening the app.
You can even record straight from the Lock Screen. (iOS 16.4+)
■ An optional evening nudge
Once a day, if you want it. Off by default.
■ Entirely on your device
No account, no server, no ads. Your records stay on your phone.
Export and import backup files yourself, and an automatic iCloud copy
brings everything back if you switch phones or reinstall.
■ Buy once
One purchase unlocks everything. No in-app purchases, no subscriptions, no ads.
Safety and technology
Found in the app by AppBrain- Price
- $2.99
- App size
- 30.7 MB
- Content rating
- Everyone
Technologies used by When'd I
Releases
Updates seen on the App Store- Version
- 5.0.0
- Launched
- August 2026
No changelog data
Alternatives
Similar apps and more from HyunWoo LeeMore from HyunWoo Lee
Rankings
App Store top charts- Highest rank
- #8
- Chart
- Top Paid
- Productivity
- Country
- South Korea
App Store Rankings for When'd I
Top rankings
| Rank | Country | Category | List |
|---|---|---|---|
| 8 | South Korea | Productivity | Top Paid |
| 94 | United States | Productivity | Top Paid |
| 99 | United Kingdom | Productivity | Top Paid |
Ranking history in South Korea
About the app and developer
About When'd I
When'd I is a productivity app developed by HyunWoo Lee.
User Ratings
When'd I is rated 1.00 out of 5 stars. The rating is based on one rating ratings.
App Information
When'd I costs $2.99. The app size is 30.70 MB. The latest version available is 5.0.0. The last update was on October 28, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since August 2026.
Developer information for HyunWoo Lee
Address:
Frequently asked questions about When'd I
Is When'd I free?
No. When'd I costs $2.99 on the App Store.
Is When'd I still available?
Yes. When'd I is on the App Store, and the last update we saw was on October 28, 2026.
How large is When'd I?
When'd I is 30.70 MB.
Is When'd I suitable for children?
App Store rates the content of When'd I as suitable for everyone.
How do people rate When'd I?
When'd I has one rating of 1.00 stars on the App Store.
Who made When'd I?
When'd I was developed by HyunWoo Lee. It is listed in the productivity category on the App Store.