Unforget Calendar

Count down or count up—one app for every day that matters. Solar & lunar, flexible reminders, widgets, celebration posters. 100% on-device.

The days that matter shouldn't be forgotten—exams, birthdays, anniversaries, payday, trips, a baby's birth... Day Keeper remembers them all.

[Countdown · Count up] The same event can count down ("X days to go"—looking forward) or count up ("X days since"—looking back). One app for both countdowns and anniversaries.

[Solar · Chinese lunar] Dual calendar display, accurate even in leap months. Never miss traditional festivals or lunar birthdays. Lunar calendar is optional.

[Flexible reminders] Remind N days ahead with custom rules—never miss an important day. Background keep-alive guide prevents missed alerts.

[Home screen widget] Add a widget with one tap—important days visible at a glance.

[Celebration poster] When the day arrives, a full-screen celebration poster—set a background image, save and share.

[Custom colors] Free HSV color picking, an exclusive color for each event.

[12 languages] Simplified Chinese / Traditional / English / Japanese / Korean / Spanish / Portuguese / German / French / Russian / Arabic / Hindi. Follows system or pick manually.

[On-device only · nothing uploaded] All data stays on your phone. No internet, no personal data collected, no third-party SDKs.

[One-time purchase · full features] No in-app purchases, no subscriptions, no ads. Pay once, unlock everything.