Turn calendar events into real system alarms on the Lock Screen and Dynamic Island. One-time purchase, no subscription.
Never miss an important event because of a silent notification.
Unmissable turns your calendar events into real system alarms - the kind that ring clearly when ordinary notifications are easy to miss. It is built for meetings, appointments, calls, classes, and anything you do not want to forget.
REAL ALARMS FOR CALENDAR EVENTS
Choose any upcoming event and set a real alarm with one tap. The alarm can ring at the event time or a few minutes before, with snooze and an optional pre-alarm countdown.
YOUR ALARM STAYS VISIBLE
- Live Activity countdown on the Lock Screen when available
- Dynamic Island shows alarm status
- Lock Screen and Home Screen widgets give you a quick glance
SIMPLE CONTROL
See upcoming events and alarm status in one place. Search, sort, and filter events, then customize alarm settings per event when needed.
SMART DEFAULTS
Set alarm timing and snooze once for new alarms, then override individual events when they need special handling.
PRIVATE BY DEFAULT
No accounts. No tracking. No analytics. No ads. No cloud sync. Your calendar and alarm data stay on your device.
ONE-TIME PURCHASE
Unmissable Pro unlocks unlimited alarms, widgets, alarm history, weekly stats, and Family Sharing. No subscriptions and no ads.
Works with iCloud Calendar, Google Calendar, Outlook, and any calendar added to your device.
Ratings & Reviews
1.0
out of 5
2 Ratings
Snooze and alarm reliability are improved in this update. Alarms now behave more consistently, snooze is more dependable, and active alarm states are easier to follow.
Fixed:
- Resolved major issues affecting alarm behavior.
- Improved snooze reliability after an alarm fires.
- Strengthened alarm state handling so your calendar alarms stay dependable.
Version 26.0.5
The developer, Remi Herbiet, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
VoiceOver
Voice Control
Larger Text
Dark Interface
Differentiate Without Color Alone
Sufficient Contrast
Reduced Motion
Information
Seller
Remi Herbiet
Size
10.4 MB
Category
Productivity
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
Mac Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.