Comparison

When Did I…? vs WhichLocker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

When Did I…?

Easily track recurring tasks and personal events to remember when you last did something. Log actions with a tap, view detailed history, and utilize Siri Shortcuts for quick access. Perfect for managing daily routines or infrequent activities.

Highlights
  • Log actions with a tap
  • View detailed history of events
  • Add custom actions with emojis
  • Record location of actions
  • Siri Shortcuts integration
  • iCloud sync between devices
Features
Read full description

When did you last change your sheets? Did you take your multivitamin today? When Did I…? lets you track when you do things so you can answer these questions and more. Choose from our suggested Actions or add your own so you can keep on top of things you’ve done. From things you do every day, to things you only do once a year, the sky’s the limit. NOT A “TO-DO LIST”: To-do list and habit trackers tell you what you should do. When Did I…? tells you what you have done and when and where you did it. ACTIONS: Choose anything you’d like to track and pick your own emoji. See how long ago it was since you last did that thing and the location of where you did it. Just tap the row when you perform that Action and When Did I…? will remember it for you. For more details about that Action, tap the arrow on the right. ACTION DETAIL: View a history of all the times you’ve logged that Action. Edit the title and choose your own emoji, add a past Event, and set up Siri Shortcuts. EVENT DETAIL: See the exact time and location of the time you performed that Action. You can add a note or edit the date and time here too. HISTORY: See your full history of all the Events you’ve added. What you’ve done today, yesterday and more. ICLOUD SYNC: When Did I…? uses iCloud to seamlessly sync your data between your iPhone and your iPad. SIRI SHORTCUTS: When Did I…? lets you add two types of Siri Shortcuts, including asking when you last did an Action and recording when you performed that Action. For example, “Hey Siri, when did I change my sheets?” Or “Hey Siri, I did change my sheets!” THEMES: Change between light or dark mode and several fun color themes. PRIVACY: We care about your privacy. To read our privacy policy, visit https://whendidi.app/privacy. Any questions or concerns? Email privacy@whendidi.app.

About

WhichLocker

This utility app helps you easily track and remember important numbers like locker combinations, parking spots, or room numbers. Access your saved values instantly through widgets and Apple Watch complications, with added support for Siri shortcuts.

Highlights
  • Save numbers with custom labels and colors
  • Stack temporary entries
  • Counter mode with +/- controls
  • Home Screen and Lock Screen widgets
  • Apple Watch complications
  • Siri shortcuts integration
  • Cross-device sync
Features
Read full description

WhichLocker remembers the numbers you'd otherwise forget: your gym locker, the parking spot, a hotel room, a bike rack, or a running count of anything. Set it once and check it from wherever you are: iPhone, Apple Watch, Home Screen and Lock Screen widgets, Control Center, watch complications, the Smart Stack, or by asking Siri. ALWAYS ONE GLANCE AWAY • Home Screen and Lock Screen widgets in every size • Apple Watch app, complications and Smart Stack widget • Control Center and Lock Screen controls to show, increase or decrease your number • Tinted and clear widget styles look right on any Home Screen A STACK, NOT JUST ONE NUMBER • Save a temporary entry, like a parking spot, without losing your locker number • Move any older entry back to the top with one tap • Give every entry its own label: Gym Locker, Parking, Hotel Room COUNTER MODE • Turn on +/- buttons to count laps, sets, reps, or anything else • Count from the app, a widget, a control, or your watch SIRI AND SHORTCUTS • "What's my Gym Locker in WhichLocker?" • "Increment WhichLocker" or "Decrement my laps in WhichLocker" • Works with Siri, Spotlight and the Shortcuts app IPHONE AND APPLE WATCH IN SYNC • Change your number on either device, or from a widget or complication, and the other device updates • Tap the watch card to enter a new value; press and hold to edit MAKE IT YOURS • Dozens of colors and gradients • Labels, letters and numbers, such as "P3 · B12" • Available in English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian and Spanish PRIVATE BY DESIGN • No account, no ads, no tracking • Your entries stay on your devices

Screenshots

When Did I…?4 screens
WhichLocker4 screens

Verdict

The call

The clearest difference is rating: WhichLocker at 5.0 against When Did I…?'s 4.4. WhichLocker also leads on price ($0.99 vs $4.99). When Did I…?'s advantage is ratings volume (89 vs 1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

When Did I…? costs $4.99 and WhichLocker $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

WhichLocker holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: When Did I…? has 89 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

When Did I…? ships an update every 6 months, WhichLocker every 7 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
When Did I…? versus WhichLocker: the parameters behind the verdict, then further details
ParameterWhen Did I…?WhichLocker
Price$4.99$0.99 — better
Rating4.4 (89 ratings)5.0 (1 ratings) — better
Positive reviews64.4% of reviews—
Number of ratings89 — better1
Update frequencyEvery 6 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS16.0 — better17.0
Further details — not scored
Size3 MB49 MB
Age rating4+4+
DeveloperHeidi PilypasTorn Metal LLC

Customer experience

When Did I…?

All ratings89 ratings
Positive83.1%
Neutral7.9%
Negative9.0%
Written reviews45 reviews
Positive64.4%
Neutral13.3%
Negative22.2%

WhichLocker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

When Did I…?

Reported bugs

6 issues
  • Shortcuts broken
  • UI locks up
  • Data lost after update
  • App crashes on iOS 14.5 beta
  • Intro screen missing VoiceOver labels
Show 1 more
  • Icon details button not functional

Requested features

23 requests
  • Apple Watch app
  • Widgets
  • Categories/filters
  • Automatic sorting by last completed
  • Show smaller time units (years/months, months/days)
Show 18 more
  • Setting to turn off fuzzy numbering
  • Accurate time display
  • Export to spreadsheet
  • Sorting and searching
  • Alternate app icons
  • Shared tasks with other users
  • Threshold time alerts/notifications
  • Local interactive notifications
  • Widget view with emoji and days since logged
  • Ability to log from lock screen
  • Sync app theme via iCloud
  • Color code tasks
  • Choose between counting timer or fixed date format
  • Add reminders for actions
  • Add location to events
  • Set specific year and date
  • Max time alert
  • Interactive notifications

WhichLocker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

When Did I…?

No in-app purchases

None

WhichLocker

No in-app purchases

Questions

Is When Did I…? free?
When Did I…? costs $4.99, with no in-app purchases.
Is WhichLocker free?
WhichLocker costs $0.99, with no in-app purchases.
Which has better reviews, When Did I…? or WhichLocker?
WhichLocker is rated higher. When Did I…? averages 4.4 out of 5 from 89 ratings, while WhichLocker averages 5.0 from 1 ratings.
Do When Did I…? or WhichLocker have ads?
Neither When Did I…? nor WhichLocker shows ads.
Which is updated more often, When Did I…? or WhichLocker?
When Did I…? ships an update every 6 months, and WhichLocker every 7 months. Most recently, When Did I…? was updated on October 17, 2026 and WhichLocker on October 18, 2026.

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