Tools for setting audible alarms before events

Built to extend calendar events into full-screen, unmissable alarms that can use custom sounds and factor travel time so an audible alarm fires before an event rather than a simple notification.

Best for: iPhone users who want calendar events to trigger a loud, full-screen alarm with configurable lead time and custom sounds.

Caveat: Requires iOS 26 or later, so it only works on modern iPhones and iPads.

Converts Google Calendar events into real phone calls that ring and speak details at event time, which cuts through silent mode and provides an audible, hard-to-ignore alert instead of a swipeable notification.

Best for: People who need a guaranteed audible call for calendar events and are willing to connect their Google Calendar and use an account-based web service.

Caveat: An account is required to connect your calendar and configure calling behavior.

Supports pre-alarms, custom sounds (including recorded voice), Critical Alerts, local notifications that fire even when the app is closed, and multiple pre-alarm options so you can get audible alarms before events.

Best for: iPhone and iPad users who need configurable pre-event alarms with custom sounds and reliable local delivery.

Caveat: iPhone and iPad only; Android is not supported.

A general-purpose alarm and reminder app with customizable ringtones, the ability to ring even on vibrate, pre-alarms and multiple repeats, and full alarm scheduling so events can trigger audible alarms rather than silent notifications.

Best for: Android (and broader mobile) users who want flexible, audible alarms with pre-alarm and repeat options, and who may coordinate alarms across people.

Enables voice-recorded and music-based alarm sounds, supports multiple pre-alarms and auto-snooze, and provides local notifications that work when the app is closed so events can produce audible alarms at configurable lead times.

Best for: iPhone and iPad users who want rich pre-alarm customization and reliable local audible alerts.

Caveat: iPhone and iPad only; Android is not supported.

Offers phone-call reminders before meetings, deadlines, and medication times so you receive an audible call rather than a standard notification; works without requiring the recipient to install an app.

Best for: Users who prefer audible phone-call reminders and want reminders without relying on in-phone notifications or app installs.