Your data stays on this device. No login. No ads. Export JSON so a lost phone is not the end.
Free local nostalgia calendar. Month grid, notes per day, and a "this day across years" stack for any MM-DD. JSON backup. No account. No ads.
Ondaypad is a local calendar: pick any day on the month grid and leave a title and a note. Notes written on the same month and day in different years show up together under “This day across years”, one card per year, so a birthday or a moving day brings back every year at once.
It opens in your browser with no sign-up or login, and notes stay in this browser on this device; nothing is uploaded. Export JSON before you change phones and import it on the new one.
Write a line on every anniversary, then tap that date to see all past years, newest or oldest first.