Kairos: Smart Alarm

Link your iPhone calendar to an alarm group and pick a word like “Vacation.” Then just add a “Vacation” event and alarms take that day off. Holidays are handled too.

Alarms that turn on and off with your schedule.

Ever forgot to turn off your alarm before a vacation, or to turn it back on for a weekend shift? Kairos checks your calendar and public holidays and decides each day whether to ring or rest. It works like the built-in Clock app, and takes care of the things you used to switch by hand.

■ Group your alarms • Put several morning alarms in one group and set their repeat days at once. • Turn a group off and every alarm in it goes quiet; turn it on and they’re back. • Need just today off? Turn an alarm off and tap “Resume at Next Alarm.” It rings again from the next one.

■ Holidays off, automatically • With “Skip Holidays” on, alarms stay quiet on public holidays, including observed holidays. • Choose U.S. or Korean holidays. Set it with one switch for a group or for a single alarm. • Holiday data updates automatically, without an app update.

■ Skip or ring by calendar events • Link your iPhone calendar in an alarm group and choose words to rest on, like “Vacation” or “WFH.” • From then on, a “Vacation” event is all it takes to skip that day’s alarms. • Choose a word to ring on, like “Weekend shift,” and alarms ring even on weekends. • Event titles are only matched on your device. They are never stored or sent.

■ Adjust any day on the calendar • Tap a date in a group’s calendar to skip or ring just that day. • The Schedule tab shows which alarms ring each day and why the others are off.

■ Rings like a real alarm • Built on iPhone alarms (AlarmKit), so it rings in Silent mode and during a Focus. • Pick a snooze length from 1 to 15 minutes and see the countdown on the Lock Screen. • Ten original alarm sounds, plus a “Tomorrow’s Alarms” note the night before. • Awake before your alarm? Touch and hold the heads-up notification to turn that day’s alarm off (turn it on in Settings).

■ Widgets at a glance • See your next alarm on the Lock Screen and Home Screen. • If tomorrow is a day off, the widget shows why and when alarms ring again. • The medium Home Screen widget shows the next few days, including days off.

■ English and Korean • Kairos follows your iPhone language, or pick English or Korean in Settings.

■ Privacy • No sign-up or login. All settings stay on your device. • No data is collected or tracked.