App Information

Event Alarm Sync App

Event Alarm Sync App is an Android utility that reads your calendar reminders and triggers persistent, attention-grabbing alarms so you do not miss important events. It is designed for users who need more reliable and visible reminder behavior than standard calendar notifications.

Android 11+ No Account Required Calendar-Based Alarms Local-First Data Handling

What The App Is For

Reliable Event Alerts

Converts calendar reminders into full alarm flows with sound, vibration, and full-screen handling, helping reduce missed reminders.

Busy Schedules

Useful for work meetings, medication reminders, personal commitments, and recurring events that need strong alert behavior.

Practical Control

Supports snooze and dismiss actions, reminder tuning, selected calendar filtering, and per-event alarm behavior controls.

How It Works

  • Reads events/reminders from your device calendar (read-only access).
  • Finds upcoming reminder times and schedules exact Android alarms when possible.
  • Shows alarm UI/notification when alarm time is reached.
  • Lets you snooze, dismiss, or silence reminders with stored local preferences.
  • Reschedules alarms after device reboot and checks alarm integrity in background.

Main Features

  • Calendar reminder to alarm conversion with timing-aware scheduling.
  • Full-screen alarm behavior and foreground service for active alarm playback.
  • Custom alarm sound selection and configurable snooze behavior.
  • Calendar selection controls (choose which calendars can trigger alarms).
  • Optional event filtering (for example, ignore all-day or unconfirmed events).
  • Local diagnostic logging tools, including optional user-initiated export/share.

Permissions And Why They Are Needed

Permission Purpose
READ_CALENDAR Read calendar events/reminders to determine alarm times.
POST_NOTIFICATIONS Display alarm notifications.
SCHEDULE_EXACT_ALARM, USE_EXACT_ALARM Improve timing accuracy for alarms.
RECEIVE_BOOT_COMPLETED Restore/re-verify alarms after reboot.
WAKE_LOCK, FOREGROUND_SERVICE, VIBRATE Deliver active audible/vibration alarm behavior while the app is in service mode.
USE_FULL_SCREEN_INTENT, SYSTEM_ALERT_WINDOW Support attention-focused alarm UI behavior.

Note: Alarm reliability can vary by device vendor settings. Excluding the app from battery optimization can improve consistency on some devices.

Privacy And Data Handling

  • Primary processing is on-device for alarm functionality.
  • No user account is required to use core features.
  • The app does not include ad SDKs or analytics/crash SDKs in the current release build.
  • Diagnostic logs are local by default and can be shared only when the user initiates sharing.
Privacy Policy

Requirements And Limitations

  • Requires calendar reminders to exist in the device calendar provider.
  • Some reminders may be delayed if external calendar sync is delayed on the device.
  • Exact alarm behavior depends on OS version and user/device settings.

Support

For support, bug reports, or business inquiries, contact: jkharitonov@argo34.com

Email Support

Last updated: March 1, 2026