One-Time Alarm & Calendar

One-Time Alarm & Calendar

Perfect for shift and reminder

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Free
In-App PurchasesWith Ads

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Details

  • Released
  • Updated
  • February 18, 2026
  • August 7, 2026

Features

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One-Time Alarm & Calendar screenshot #7 for iPhone
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About

Worried you’ll forget tomorrow’s shift alarm? Need reliable alerts without loud sounds? CAlarm solves it with date-based alarms and full-screen notifications — even on the lock screen, so you never miss an important reminder. Manage everything in one app. Add alarms directly to calendar events, and save templates for one-tap shift & alarm setup. You can also view upcoming schedules with widgets. Features • Date-based alarms for specific days • Calendar schedule management with alarms • One-tap templates for shifts & alarms • Repeat alarms by weekday • Snooze support • Advance alarm notifications (push notifications) • Multiple alarm sounds • Customizable theme colors • Dark mode support • Widgets for upcoming schedules • Long-press to duplicate alarms
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What's New in One

3.4.0

August 7, 2026

- Biweekly, monthly, and yearly recurring alarms (Premium) - Set the first day of the week for the calendar (Monday or Sunday) - Display Rokuyō (Japanese traditional calendar) on the calendar

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In-App Purchases

$2.99

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