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When'd I

App StoreReminders🇺🇸

No liveness check has reached it yet; it is registered on the App Store and has been in the index since 27 Sep 2026. How this is checked

いつだったっけ is an iPhone app for recording the date you last completed recurring activities such as changing filters, washing sheets, or calling family. It provides elapsed-time views, timelines, photos, notes, widgets, Lock Screen logging, optional reminders, and local backups without accounts or ads.

Inferred · not functionally tested

PaidiOS
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Overview

6 features

Purpose: Remembering when you last completed recurring household, personal, or relationship tasks.

Inferred · not functionally tested

Audience: individual iPhone users tracking recurring personal activities

Inferred · not functionally tested

Functions: scheduling

Inferred · not functionally tested

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: paid · license: Proprietary · platforms: MOBILE · deployment: ios

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: apps.apple.com. These links do not verify the individual claims.

In the Reminders space, When'd I takes a focused approach. Inferred · not functionally tested: It focuses on remembering when you last completed recurring household, personal, or relationship tasks. Inferred · not functionally tested: When'd I is a consumer product aimed at individual iPhone users tracking recurring personal activities. Basis unknown · not verified: Pricing is paid, from $2.99. Basis unknown · not verified: When'd I is available on iOS.

HyunWoo Lee builds and maintains When'd I, and it first shipped in 2026. Inferred · not functionally tested: Key capabilities include one-tap logging, elapsed days, and timeline view.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • One-tap logging
  • Elapsed days
  • Timeline view
  • Photos and notes
  • Home Screen widgets
  • Lock Screen logging

Topics: Inferred · not functionally tested

Tags
recurring-task-logpersonal-maintenancetimeline-trackingoffline-firsticloud-backup

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
iOS

Trust & compliance

Public signals
HTTPSStore listing found

Indexing history

2

What PulseGate has recorded for this listing

  1. Indexed2 Oct · 12:08 UTC
    언제했지 - 마지막으로 한 날 seen via Apple App Store Top Charts (RSS)
    Source: Apple App Store Top Charts (RSS) · Open
  2. Indexed27 Sep · 10:47 UTC
    いつだったっけ seen via crawler:appstore
    Source: crawler:appstore · Open

Frequently asked questions about When'd I

What is When'd I?
Inferred · not functionally tested: When'd I focuses on remembering when you last completed recurring household, personal, or relationship tasks. It is catalogued under Reminders on PulseGate.
Who is When'd I for?
Inferred · not functionally tested: When'd I is a consumer product built for individual iPhone users tracking recurring personal activities.
How much does When'd I cost?
Basis unknown · not verified: Paid plans start at $2.99.
What platforms does When'd I run on?
Basis unknown · not verified: When'd I runs on iOS.
Is When'd I still active?
Unverified. When'd I has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to When'd I?
Similar projects tracked by PulseGate include Last Time Tracker, NotedThat, and When — Days Until & Days Since.Last Time TrackerNotedThatWhen — Days Until & Days Since
Who develops When'd I?
When'd I is developed by HyunWoo Lee, based in the United States.
When did When'd I launch?
When'd I first shipped in 2026.

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