When'd I Downloads & RevenueWhen'd I · App Store & Google Play
When'd I by HyunWoo Lee is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
Full timeline · 76 events
- 🌟When'd I featured by AppleiOSapps · TW
- 💰When'd I: price riseiOS2.99 USD → 3.99 USD · US
- 💰When'd I: price riseAndroid3.09 USD → 3.99 USD · US
- 🌟When'd I featured by AppleiOSapps · TW
- 💰When'd I: price riseiOS90.00 TWD → 120.00 TWD · TW
- 💰When'd I: price riseiOS4400.00 KRW → 7700.00 KRW · KR
- 💰When'd I: price riseiOS500.00 JPY → 840.00 JPY · JP
- 💰When'd I: price riseiOS2.99 GBP → 3.99 GBP · GB
- ✏️When'd I: app got biggeriOS29 MB → 36 MB (+22%)
- 📈When'd I dropped out of every chart we trackAndroidLast seen 1 Nov
- 📦When'd I updated to version 5.1.0iOS"Report" is now split into "Monthly · Yearly · All". Monthly and yearly Recap cards let you look back on a month or a year and share them as images. Tap a date in the monthly calendar to jump to that day in "Catalog".
Use "Records · Overdue" at the top left of Home to see only your overdue items. You can also swipe left or right to switch, and "Complete" takes an item off the list.
Tap the input field on Home to choose "Date · Time · Category" as you record, and search now finds record notes too. "Catalog › Calendar" shows each day with that day's photo, and you can record several items at once on a chosen day. In an item's details, each record shows how much time has passed, like "1 year 2 months 3 days ago".… more - 🌟When'd I featured by AppleiOSapps · TW
- 💰When'd I: price riseiOS4.99 AUD → 5.99 AUD · AU
- 🌟When'd I featured by AppleiOSapps · TW
- ✏️When'd I: new iPad screenshotsiOS· US
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · US
- 🌟When'd I featured by AppleiOSapps · TW
- ✏️When'd I: new iPad screenshotsiOS· AU, CA
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · AU, CA
- 📈When'd I entered the top 10 on iPad · Top Paid All AppsiOSTW
- ✏️When'd I: new iPad screenshotsiOS· JP
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · JP
- ✏️When'd I: new iPad screenshotsiOS· TW, KR
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · TW
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · KR
- 📦When'd I updated to version 5.0.0iOS'설정 › 동기화'의 '동기화할 곳'에서 구글 드라이브를 고르면 iPhone과 iPad 사이에 기록이 동기화돼요. 무료이고, 기록은 내 구글 드라이브의 앱 전용 공간에만 저장돼요. 사진은 기기 사이에 옮겨지지 않아요. iCloud를 쓸 때는 백업이 아직 올라가지 않았거나 저장 공간이 가득 차면 알려 드려요.
기록 오른쪽 ⋯의 '날짜 변경'으로 기록을 다른 날로 옮길 수 있어요. 시각은 '시간 변경 및 지우기'에서 고쳐요.
iPad처럼 넓은 화면이나 펼친 폴더블 iPhone에서는 목록과 상세가 두 칸으로 나란히 보여요.… more - 📦When'd I updated to version 4.3.0iOS項目の詳細画面の⋯にある「項目を完了にする」で、終わった項目を完了にできます。完了した項目は名前の後ろにチェックマークが付き、周期・遅れ・通知の対象から外れますが、過去の記録はそのまま残ります。「辞典」の「カテゴリ」と「カレンダー」で、「完了」としてまとめて見られます。
カレンダー上部の年・月のタイトルをタップすると、見たい年と月にすぐ移動できます。
iCloudで複数の端末を使うとき、完了の状態も他の端末に反映されます。すべての端末をアップデートしてください。… more - ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · CA
- ✏️When'd I: new iPad screenshotsiOS· JP
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · JP
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · US
- 📈When'd I entered the top 100AndroidTop Paid · Productivity · TR
- 📈When'd I charting in a new countryAndroidTurkey
- 📈When'd I entered the top 100AndroidTop Paid · Productivity · NL
- 📈When'd I charting in a new countryAndroidNetherlands
- 📈When'd I entered the top 10iOSTop Paid · Productivity · MY
- ✏️When'd I: new iPad screenshotsiOS· TW, KR
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · TW
- ✏️When'd I: renamediOS上次是什麼時候 → 上次是什麼時候 - 家事·保養紀錄 · TW
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · KR
- ✏️When'd I: new iPad screenshotsiOS· AU
- ✏️When'd I: new screenshotsiOS7 screenshots (was 7) · AU
- 📦When'd I updated to version 4.2.0iOSUse "Export" to turn your records into images to share. Choose "Year", "Calendar" or "Day"; in "Day", put text on the photo with "Overlay" or use "Polaroid", and pick the text design and colors (from ⋮ in an item's details, from each record, or from "Photos" and "Calendar" in "Catalog").
11 color themes were added under "Settings" > "Theme". In "Catalog", drag the screen left or right to switch between "Photos", "Calendar" and "Category".
If you use several devices with iCloud, per-item thresholds, each item's category, and category order, names and deletions now carry over to your other devices too (when "Import from iCloud automatically" is on). After updating all your devices, open the app once on each.… more - 📈When'd I entered the top 100 in 3 chartsAndroidTop Paid · Productivity · MX · Top Paid · Productivity · TH · Top Paid · Productivity · VN
- 📈When'd I charting in a new country in 3 chartsAndroidMexico · Thailand · Vietnam
- 📦When'd I updated to version 4.1.0iOS通知を減らしました。「忘れていませんか?」は基準日数を超えた日に一度だけ届きます。基準日数は項目ごとに設定できます(設定 > 「項目ごとの通知基準日数」、または項目詳細の下)。更新後にアプリを一度開くと、新しい通知スケジュールが適用されます。
レポートの「いま遅れているもの」は普段の周期より遅れたものを先に表示し、基準日数だけを超えたものは下の「しばらくしていないこと」にまとめます。周期は最近の記録から計算し、しばらく休んでいる項目は「お休み中」と表示します。
iPhoneとiPadでは、アプリ使用中に届いた通知は画面を隠さず通知センターに残ります。基準日数の直接入力、項目詳細の下のボタンなども整えました。… more - ✏️When'd I: description updatedAndroid· US
- ✏️When'd I: new screenshotsAndroid12 screenshots (was 12) · US
- ✏️When'd I: languages changediOS
- ✏️When'd I: languages changediOS
- 📦When'd I updated to version 4.0.0iOSRecord without opening the app from a widget or another app's "Share" (on iPhone, the Lock Screen too). "Save to iCloud automatically" on iPhone and iPad brings in other devices' records.
New in Settings: "Manage categories". After recording, a bottom bar offers "Undo" and "Add photo or note"; item details also open in "Calendar view".
New installs get a how-to guide (Settings > "How to use"). Also polished: jumping from "Photos" to the item, the dark mode icon, and more.… more - 🌟When'd I featured by AppleiOSapps · TW
- ✏️When'd I: new screenshotsAndroid12 screenshots (was 10) · US
- 🌟When'd I featured by AppleiOSapps · TW
- 📈When'd I entered the top 100 in 3 chartsAndroidTop Paid · Productivity · AE · Top Paid · Productivity · ID · Top Paid · Productivity · IN
- 📈When'd I charting in a new country in 3 chartsAndroidUnited Arab Emirates · Indonesia · India
- 🆕When'd I first spotted by AppInsiderAndroidSaudi Arabia
- 🌟When'd I featured by AppleiOSapps · TW
- 🌟When'd I featured by AppleiOSapps · TW
- 📈When'd I hit #1 in 2 chartsiOSTop Paid · Productivity · JP · Top Paid · All Apps · TW
- 📈When'd I entered the top 10 in 4 chartsiOSTop Paid · Productivity · AU · Top Paid · Productivity · CA · Top Paid · Productivity · ID · Top Paid · Productivity · TH
- ✏️When'd I: new screenshotsiOS7 screenshots (was 5) · TW
- ✏️When'd I: new screenshotsiOS7 screenshots (was 5) · KR
- ✏️When'd I: new screenshotsiOS7 screenshots (was 5) · IN
- 📦When'd I updated to version 3.1.0iOSThe × (Clear) in the Home search field now clears it in one tap. Recording an item you found, or coming back from its details, returns Home to the full list.
In the Catalog's Calendar, "N records" now counts that day's records, not items. Records dated after today show as "Today" on Home and count toward "Last 7 days".
A photo you add now shows large right away. While your records need restoring, the app tells you instead of seeming to save. Other bug fixes.… more - 📦When'd I: now updating weeklyiOS4 updates in 30 days, after a quiet two months
- 🌟When'd I featured by AppleiOSapps · TW
- 📦When'd I updated to version 3.0.0iOSRecords now keep the time you logged them, and you can log the same thing several times a day.
On Home, today's items show "under 30m", "under 1h" or "2h"; an item's details show the time and let you "Change time", and photos opened from Photos in the Catalog show it too (Settings > "Show time" turns this off).
Added Hindi, Vietnamese, Turkish and Arabic. Saving 3.0 records in an older version of the app may remove their times.… more - 🌟When'd I featured by AppleiOSapps · TW
- 📦When'd I updated to version 2.5.0iOSYou can now choose the app language in Settings under "Display & behavior".
Fixed Simplified Chinese appearing instead of Traditional Chinese on devices set to Taiwan or Hong Kong. - 🆕When'd I first spotted by AppInsideriOS#94 in Top Paid · All Apps · South Korea
- 📈When'd I new best rank in the overall chart: #94iOSTop Paid · All Apps · KR
- 📈When'd I new best rank in the overall chart: #8iOSTop Paid · All Apps · TW
- 📦When'd I version 2.4.0iOSNo release notes
- 🆕When'd I released on the App StoreiOS
- 🆕When'd I released on Google PlayAndroid
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
When'd I at a glance
AI summary written from our chart and store data, 2026-11-05. It can be wrong: check the numbers above.
A privacy-focused productivity tool for iOS users who prefer tracking the last date of recurring tasks over managing traditional to-do lists. The app has achieved the #1 position in the Paid Productivity category in Taiwan, indicating strong regional traction despite a low global rating count.
Similar apps: Streaks, Loop Habit Tracker, Things 3
App Store
App details
Google Play
App details
When'd I downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | 10+ | 1k+ |
| Google Play | 1+ | 100+ Measured |
| Total | 10+ Confidence | 1k+ Confidence |
How this is calculated
Where When'd I's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | #11 | 2 of 30 countries | – | – |
| Google Play | – | 0 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 1.0 ★ | 1 |
| Google Play | – | – |
| Both stores | 1.0 ★ weighted by ratings | 1 |
What users say about When'd I
From recent reviews.
About When'd I
"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.
When'd I App Store
When'd I is #11 in Productivity Paid in Taiwan and charting in 2 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
When'd I at a glance
AI summary written from our chart and store data, 2026-11-05. It can be wrong: check the numbers above.
A privacy-focused productivity tool for iOS users who prefer tracking the last date of recurring tasks over managing traditional to-do lists. The app has achieved the #1 position in the Paid Productivity category in Taiwan, indicating strong regional traction despite a low global rating count.
Similar apps: Streaks, Loop Habit Tracker, Things 3
When'd I on the App Store
App details
When'd I downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where When'd I's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| ProductivityPaid | #11 | |
| ProductivityPaid | #52 |
Apps near When'd I on the chart
Productivity Paid, around #11.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about When'd I
From recent reviews.
About When'd I
"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.
Latest updates
Store changes
What When'd I changed on its store page: name, icon, screenshots, price, size, languages, requirements.
When'd I Android
Not in a tracked Google Play top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
When'd I on Google Play
App details
When'd I downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where When'd I's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
About When'd I
"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.
■ Home screen widgets
Check what's overdue from your Home Screen, and log without opening the app.
■ 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 with Android backup (your Google account) on,
your records come back when you switch phones or reinstall.
■ Buy once
One purchase unlocks everything. No in-app purchases, no subscriptions, no ads.
Store changes
What When'd I changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Similar apps
Apps people compare with When'd I: the same core purpose or gameplay, checked one by one.