title: Best Calendar Alarm Apps (2026): Alarms, Not Notifications
url: https://boardspy.site/compare/best-calendar-alarm-apps/
type: Article
dateModified: 2026-10-09
publisher: BoardSpy
quick_answer: Quick answer: BoardSpy Calendar Alarms is the best calendar alarm app if you are on Android or use Google Calendar. It reads your calendar read-only, rings a leave-by alarm for events with an address based on live traffic, rings a meeting alarm for video calls, and the alarm keeps ringing until you tap Stop or Snooze (App Store · Google Play). On iPhone, OnTimer is a strong alternative that also covers Apple and Outlook calendars.
primary_keyword: best calendar alarm app
keywords[6]{term}:
  best calendar alarm app
  calendar alarm app android
  app for calendar leave alerts
  meeting alarm app
  alarm for google calendar events
  time to leave alarm calendar
faqs[4]{q,a}:
  What is the best calendar alarm app?,For Google Calendar on iPhone or Android, BoardSpy Calendar Alarms: it rings a leave-by alarm for events with an address based on live traffic, rings a meeting alarm for video calls, and keeps ringing until you tap Stop or Snooze (App Store (https://apps.apple.com/us/app/commute-alerts-traffic-alarm/id6777167408), Google Play (https://play.google.com/store/apps/details?id=site.boardspy.app)). On iPhone with Apple or Outlook calendars, OnTimer is a strong alternative.
  Which app alarms you when it is time to leave for a calendar event?,BoardSpy Calendar Alarms and OnTimer both ring an alarm based on travel time for events with a location. Hey OnTime and Apple Calendar send a leave-by notification instead of an alarm.
  Can I get an alarm before a Zoom or Google Meet call?,Yes. BoardSpy gives events without a physical address, such as Zoom, Meet and Teams calls, a meeting alarm before they start. OnTimer also turns calendar events into alarms. Apps that only do travel-based Time to Leave skip events with no address.
  Does BoardSpy edit my Google Calendar?,No. BoardSpy connects to Google Calendar with read-only access. It never creates, edits or deletes events.
citations[7]{name,url}:
  OnTimer — calendar alarm app for iPhone,https://www.ontimer.app/
  OnTimer — Time-to-leave reminders,https://www.ontimer.app/time-to-leave-reminders
  Hey OnTime — product page and FAQ,https://heyontime.com/
  Apple Support — Change Calendar settings on iPhone,https://support.apple.com/guide/iphone/change-calendar-settings-iphc37be2016/ios
  Apple Community — Time to Leave requires Alerts & Shortcuts Automations,https://discussions.apple.com/thread/256266767
  Waze Help — Sync your calendar with Waze,https://support.google.com/waze/answer/6341187
  BoardSpy — vs Google Calendar Time to Leave,https://boardspy.site/compare/boardspy-vs-google-calendar-time-to-leave/
internal_links[5]{label,url}:
  if it is not working,https://boardspy.site/blog/apple-calendar-time-to-leave-not-working/
  details,https://boardspy.site/blog/add-travel-time-to-google-calendar/
  why,https://boardspy.site/blog/google-calendar-time-to-leave-not-working/
  all leave-time apps ranked,https://boardspy.site/compare/best-leave-time-apps/
  BoardSpy vs Google Calendar Time to Leave,https://boardspy.site/compare/boardspy-vs-google-calendar-time-to-leave/