Birthday apps only know the Gregorian calendar. But your family also celebrates Hebrew birthdays and Hebrew anniversaries, and remembers loved ones on the Hebrew date of their yahrzeit. DuAlert is built for exactly that: every event can follow the Hebrew calendar, the Gregorian calendar, or both, with its own reminder for each.

📅 Two calendars, one app • Choose Hebrew, Gregorian or Both for every event • Enter the Gregorian date and DuAlert suggests the Hebrew one, or set the Hebrew date directly • Accurate every year: a Hebrew date falls on a different Gregorian day each year, and DuAlert follows it automatically • Hebrew leap years handled, including Adar I and Adar II • Each card shows both dates side by side, with a clear HE / GR / HE+GR badge

🌇 Hebrew dates begin at sunset A Hebrew day starts the evening before, and DuAlert knows it: • Get your Hebrew reminder at sunset, or a few minutes before or after, calculated for your location and that exact date • Prefer a fixed time? If it falls after sunset, the reminder arrives on the eve, when the Hebrew day has already begun • See in advance exactly when the next reminder will arrive

🎂 Birthdays · 💍 Wedding anniversaries · 🕯️ Yahrzeits • Wedding anniversaries with your spouse's name • Yahrzeit (Azkara) reminders on the Hebrew date of passing, with a gentle reminder to light a candle and say Kaddish • Be reminded on the day, 1 day, 3 days or 1 week before, or all of them

💬 Wish them in one tap Call, send an SMS or a WhatsApp message with a ready-made greeting, right from the event card. Import names and phone numbers from your contacts.

🏠 Everything at a glance • Today's and upcoming events on the home screen • Search and filter by event type or by calendar • Available in English, Français and עברית, with full right-to-left support

🔒 Private by design No account, no servers, no ads, no tracking. Your events stay on your phone, with optional Android backup to your own Google account.

DuAlert: Hebrew and Gregorian dates. Never miss either.