Quick answer

Use an alarm when missing the exact moment matters: waking up, leaving for the airport, taking medication, checking the oven, or joining a call. Use Reminders when the item can sit in a list and be handled later.

Xiaohei sorting a ringing alarm toward an interrupt-now bell and a reminder toward a task list
Alarms interrupt now; reminders can wait in a task list.

Use alarms for interruption

An alarm is for moments that need your attention at a specific time. It should be easy to see, easy to trust, and easy to clean up after it is no longer needed.

Good alarm examples

  • Wake up for an early flight.
  • Take medication at a specific time.
  • Stop cooking or leave for pickup.
  • Join a meeting in another time zone.

Use reminders for tasks

Reminders are better for tasks with notes, checklists, locations, and projects. They are great for "buy batteries" or "send the invoice." They are less ideal when you need a clear alarm sound at an exact moment.

Where Alarm One fits

Alarm One is for the alarm side of the line: one-time alarms, custom repeat schedules, time zone alarms, custom sounds, widgets, Live Activities, and iCloud sync.

  • One-time alarms for moments that should not leave clutter behind.
  • Custom repeats for schedules that do not fit daily repeat.
  • Time zone alarms for calls, travel, classes, and market openings.