A DUE-Sh.D — Couple Calendar

Couple D-day widget & counter

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

One date is all it takes — 100-day marks, anniversaries and D-days, right on your widgets. Plans sit beside them, and yours show on theirs. Shared only as ciphertext. A couple calendar that keeps your story on your phone — pair, and only ciphertext ever leaves it. • Enter the day you met — 100-day marks, day 1000, anniversaries, all automatic • Valentine's, White Day and friends, handled • Alerts 7/3/1 days before and on the morning of • Home & Lock Screen widgets — day count and next D-day, always in sight • Add your own days (lunar-calendar repeats supported) • Our plans — upcoming dates and trips as D-days, with their own widget • Bucket list — things to do together, kept with the day you did them • Date roulette — can't decide? Draw a card and it becomes a plan • Love language — a five-question quiz, each other's language on both screens • Our story — a timeline of every milestone you've passed together • Couple card — export your D-day as a 9:16 card for stories (free) • Your couple photo as the home and widget background · every theme free Pairing (optional): one code keeps both phones in step. Everything is encrypted on-device before relay — without the code, no one (including us) can read it. Skip pairing and none of your entries ever leave the phone — the app only fetches a single status file when it opens. Photo originals stay on each phone; photos in memories and plans pass as encrypted copies, and the server keeps at most 400 per couple before clearing the oldest. Signal pack (one-time): a "miss you" heart lands right on your partner's home-screen widget — no need to open the app. Signals like Miss you, Good night, Kiss and You got this, plus a mood you can hang on their widget for 24 hours. Long-press a signal notification to reply in place, send from the Lock Screen or Control Center button, or send right from Apple Watch — and every heart is kept in a little chronicle. Receiving is free, so one purchase unlocks sending for both of you — and it includes every paid feature to come. Signals are encrypted too. No account, no sign-in, no ads, no subscriptions — everything else is free. Even if you part ways, or this app disappears, your records stay on your phone.

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Find evenings you're both free and plan right there. - Once you've each turned on "Share busy times" in Settings and allowed Calendar access, your partner's busy times show as gray rows in the calendar's day list and card. Only 30-minute busy blocks are sent, encrypted — never what or where. Off by default; next 3 weeks only; turning it off takes yours back. - With both on, "Evenings you're both free" (top-left menu on the Calendar tab) shows up to five times in the next 2 weeks when you're both free for 2+ hours: weekdays 6–10 PM, weekends and holidays 10 AM–10 PM. Tap one to make a plan. - You both need 3.0 to see each other's. Choose the day your countdown widget shows. - New "Pick-a-day countdown" widget: touch and hold, then Edit Widget to pick the day each one shows. "Our days" widgets you've placed stay as they are. - Fixed the small "Our days" widget showing your theme and gray bands instead of your background photo. - "Background photo position" in Settings picks which part of your background photo shows (widgets too, unless a photo is pinned from Memories). - On iOS 27, "Our calendar" has a new largest size that also lists what's coming up. - Tap the "Next plan" widget or a "Coming up" widget row to open that day; an empty "Next plan" widget starts a plan, as does a long press on the app icon. Flights and late plans stay until they end. - A flight whose arrival time you add or change now needs its arrival time zone to save. It then stays under "Coming up" (or "Personal") in the Plans tab until the scheduled arrival, and a pickup alert can ring once then, only on the phone that turns it on (ticket time; delays aren't reflected). Flights on past dates don't need one. - A plan together that runs past midnight stays "Ongoing" until it ends. One-off plans move to past plans once they end (2 hours after the start if there's no end time). - In different time zones? D-day counts follow the viewing phone's calendar. Alerts ring once and fit this phone. - "1d" on a timed plan now replaces its 9 AM day-before alert. All-day plans get "9 AM that day" and "8 PM the day before" alerts, which also replace the 9 AM alert. - New "Default plan alerts — this phone only", and "Plan alerts during Focus" for alerts right before a plan, 3 hours before departure, and pickup alerts. - On iOS 26+, with "Anniversary & plan alerts" and "On the day" on, the 9 AM alert on milestones like 100 days and anniversaries is scheduled ahead as a Lock Screen banner (not with "Lock the app" on). A DUE on your Mac and Apple Watch. - With a code from "Use on my other devices" on your main iPhone (it needs 3.0 too), you can use A DUE on an Apple silicon Mac. "How about this day?", the busy-times switch and erasing from the server stay on the iPhone. - New "Next plan" complication on Apple Watch for your next plan together. The calendar and plans got better too. - New: "Every N days" repeats, checklists on non-repeating plans together, "Copy to another day" in the editor, and "Make it a plan" from your bucket list. - Plus memo marks, map links for places, copying phone calendar events in, multi-day phone events as bars, weeks starting Monday, memories from the day card, memory dates from photos, and "Our past weeks". - Plans your partner made have no swipe-to-delete button — delete them from the editor. A full swipe no longer deletes right away. - Editing or logging a plan that ended earlier today no longer pings your partner. A "How about this day?" you take back now clears from their phone quickly with a silent notice (or on next open if A DUE was closed). - Every N days, checklists, all-day alerts and arrival time zones work fully only when you're both on 3.0 (the plan sheet says if your partner's app is older), and swipe protection works only on 3.0 phones. Also - Fixed faint text in Calendar-tab cards and sheets when the dress is opposite to your Light or Dark Mode (except Polaroid) — they now match the dress.

The developer, SHIHYUN KIM, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
SHIHYUN KIM
Size
12.5 MB
Category
Lifestyle
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
  • Apple Watch
    Requires watchOS 10.0 or later.
Languages
English and Korean
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 SHIHYUN KIM