
One-Time Alarm & Calendar
Perfect for shift and reminder
0 ratings
Free
In-App PurchasesWith Ads
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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+1
What's New in One
3.3.0
July 22, 2026
- Change volume of an alarm - Fix minor bugs
2
In-App Purchases
$2.99
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