This app is really cool. It has some great features to remind to give tzedaka:
Features
Reminders before Yom Tov and on Purim
Reminders after a day when Yizkor is said
Reminders before personal dates, such as yartzeits , and birthdays
Optionally turn on Yom Kippur Kotton
Enter dates in on Hebrew or Gregorian calendar, and the app will automatically convert to Hebrew and remind you on the Hebrew date
User settings, such as how often to be reminded, switch specific dates on/off
Links to Kupath Rabbi Meir's donation software, so that all donations are in the same place
