A DUE-Sh.D — Couple Calendar

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 the app makes no network requests at all. Photos are never uploaded.

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.