Arrrrn

Arrrrn is an app that automatically sets alarms by calculating backwards from your calendar schedule for the next day.

It eliminates the hassle of manually setting alarms every night.

■ Main Features

・Calendar-Linked Alarm
Automatically retrieves your first appointment of the next day and sets an alarm at the time minus preparation time.

・Alarm Off on Days with No Appointments
The alarm will not sound on holidays or days with no appointments. This prevents you from forgetting to turn off or dismiss your alarm.

・Pre-Appointment Notification
At a specified time (default 22:00), it will notify you of the next day's alarm time. You can check your schedule for the next day before going to bed.

・Manual Override
You can also manually change the automatically set time.

・Snooze Function
Snooze when the alarm sounds, allowing you to safely re-sleep. The interval is customizable.

・Multilingual Support
Supports Japanese and English. Automatically switches according to your device's language settings.

■ Customization

• Preparation time (5 minutes to 3 hours)
• Notification time
• Alarm sound selection
• Volume adjustment
• Vibration on/off
• Target calendar selection (multiple calendars supported)

■ Privacy

• Calendar data is processed only within the device and is never transmitted to external servers.

• No internet communication is performed.