Unbirthday
日本語 Get the AppGet
A celebration finder

Reasons to celebrate,
on ordinary days.

Day 1,000 together. Your 100-millionth second alive. Day 777 without a cigarette. Just a title and a date — Unbirthday finds the days worth celebrating and delivers them each morning.

Get it on the App Store Free, no sign-up required

Currently in App Review — coming soon.

Unbirthday list screen

Why there are no templates

Plenty of apps can count.
None could find you a reason.

No templates, no category picker. You decide what to remember — the app finds when to celebrate it.

Calendars & reminders

  • Only yearly repeats get celebrated
  • "How many days has it been?" is mental math
  • Day 1,000, repdigits, your billionth second — all slip by

Unbirthday

  • Just a title and a date
  • Days since & countdowns update daily, automatically
  • Round numbers, repdigits, monthiversaries, unit magic — found for you

The app

Swipe through

List: days since and countdowns Detail: next milestones Home Screen widgets Add screen Milestone Compendium: full lineup and custom milestones

Getting started

Two inputs. That's the whole setup.

1

Write a title

"Baby's first steps." "The day we met." Your words — the placeholder examples will spark ideas.

2

Pick a date

Past or future. Add a photo, an emoji, and a color if you like.

3

Let it count

Day counts live on your Home Screen widget; milestone mornings come with a 9 AM alert.

Milestones

Reasons it finds for you

This is the complete lineup of milestones the app celebrates — discovered automatically, with a calendar view showing which lands where.

Round numbers

Every 100 days (to 1,000)Every 1,000 days (to 10,000)Every 10,000 days, forever

Repdigits

Day 1111Day 22223333…9999Day 1111122222…

Monthiversaries & anniversaries

Months 1–11 (first year)Half a yearEvery year

Lucky sevens

Day 77Day 777

Unit magic

10M seconds (day 116)1M minutes (day 695)100M seconds (day 1,158)1B seconds (day 11,574)

Staircase days

Day 123Day 1234Day 12345

Powers of two

Day 1024Day 2048Day 4096

Custom milestonesone-time purchase

Name it and define it with any mix of years, months, days, hours, minutes and seconds — even the exact moment of 11 years 11 months 11 hours 11 minutes 11 seconds.

Browse this lineup anytime in the app's Milestone Compendium — and add your own custom milestones there.

Privacy & trust

Your days belong
to you alone

☁️

iCloud sync

Data lives on your device and in your own iCloud. The developer can't see it. Your days survive a new phone.

🎟️

Pay once

3 days free. One purchase unlocks unlimited days and custom milestones. No subscription, ever.

🚫

No ads, no account

Zero ad or analytics SDKs. No sign-up required.

The sillier it is,
the more precious it becomes.

Get it on the App Store

For iPhone · Free with In-App Purchase