CalSyncAlert - Calendar Alarm

CalSyncAlert - Calendar Alarm

Auto Event Alerts & Reminders

2 ratings
2 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 10, 2025
  • September 15, 2026

Features

CalSyncAlert - Calendar Alarm video #1 for iPhone
CalSyncAlert - Calendar Alarm screenshot #2 for iPhone
CalSyncAlert - Calendar Alarm screenshot #3 for iPhone
CalSyncAlert - Calendar Alarm screenshot #4 for iPhone
CalSyncAlert - Calendar Alarm screenshot #5 for iPhone
CalSyncAlert - Calendar Alarm screenshot #6 for iPhone
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About

This app ensures you never miss important calendar events by converting them into unignorable, full-screen alarms. It syncs automatically with your existing calendars and offers customizable alert options for a more reliable reminder system than standard notifications.

✓Automatic alarm sync from multiple calendars
✓Full-screen, unmissable alerts
✓Smart snooze options
✓Multiple alarm sound choices
✓Home screen widget with countdown
✓Background sync for updated alarms
✓Support for recurring events
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What's New in CalSyncAlert

1.16

September 15, 2026

v1.16 — Decide exactly how each event should wake you. • Leave-by alarms: for events with a location, add an alarm worked back from the travel time. Choose the mode of travel and how much slack you want. • Alarms for all-day events: pick the time of day, and whether it rings on the day or the day before. • Quiet hours: an alarm that falls inside the window is held until the window ends (never past the event's start). • Event filters: skip events you have declined, events that were cancelled, and events containing keywords you choose. • Alarm history: look back at what rang, what you snoozed, dismissed or skipped. • Skip the next alarm straight from the widget. • The widget now reads your calendar itself, so it stays current without opening the app. • More alarms can be armed at once, so a packed day is less likely to lose one. • Settings has been reorganised, and the wording across the app now consistently says "alarm". • Fixed the trial-ended screen appearing briefly after a reinstall even when you had already purchased. Thank you for using CalSync Alert.

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Subscriptions & In-App Purchases

Monthly

All features included. Cancel anytime.

$0.991 Month
How to cancel CalSyncAlert subscription ⁉️

User reviews

Awesome!!!

The developers of this program are so responsive. I asked for certain modifications to help the program work for me. The features were added right away and the developer reached out to me to walk me through the changes. This program syncs perfectly with the apple calendar. All you have to do is set an alert for your event within your calendar and CalSyncAlert sets an alarm that does not turn off until you manually turn it off. I will no longer miss important events! Thank you so much!
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Response from developer

Thank you so much — this genuinely made my day. Being able to add the changes you needed and walk you through them is exactly why I built CalSyncAlert. So glad it's helping you never miss an event, and I'm always around if anything else comes up. 🙏

Has some core problems

Doesn’t do or have an option to do full screen alerts for before the event only the start time. Mine doesn’t output sound, so overall not helpful for my needs

Response from developer

Following up on our earlier reply — version 1.8 is now live on the App Store. It lets you set a custom advance notification time for each event, so you can get a full-screen alert before an event begins, not just at the start time. This directly addresses the pre-event alert issue you raised. If the sound still doesn't play after updating, it's usually a system setting — please check that the Ring/Silent switch isn't set to Silent, Focus/Do Not Disturb is off, and Settings > Notifications > CalSyncAlert > Sounds is enabled. If it still happens, please reach out via the support link in the app and we'll investigate. We'd really appreciate it if you'd give 1.8 a try. Thanks again for helping us improve CalSyncAlert.

Developer apps

FAQ

How does CalSyncAlert ensure I don't miss events?

CalSyncAlert converts your calendar events into full-screen alarms that demand attention with sound and on-screen alerts, unlike standard notifications. This ensures you are notified even if your phone is on silent or notifications are otherwise buried.

What calendars does CalSyncAlert support?

CalSyncAlert automatically syncs with major calendar services including Google Calendar, iCloud, and Outlook. It also supports syncing from all your calendars at once, including recurring events.

Does CalSyncAlert have ads?

No, CalSyncAlert is ad-free. The app is available for free with in-app purchases, offering a clean and uninterrupted user experience.

What are the pricing options for CalSyncAlert?

CalSyncAlert offers a 14-day free trial for full access to all features. After the trial, you can choose between a flexible monthly subscription or a one-time purchase for permanent access.

Can I customize the alarms in CalSyncAlert?

Yes, you can choose from 4 built-in alarm tones to personalize your alerts. Additionally, the app features a smart snooze function allowing you to select intervals of 1, 5, 10, 15, or 30 minutes.

Is CalSyncAlert available on all devices?

CalSyncAlert is currently supported on iPhone and iPad devices. The app is designed to work seamlessly across these Apple platforms.

How often is CalSyncAlert updated?

The latest version of CalSyncAlert is 1.12, last updated on June 25, 2026. This indicates regular updates to improve functionality and reliability.

What is the age rating for CalSyncAlert?

CalSyncAlert has an age rating of 4+, making it suitable for a wide range of users. The app's focus on calendar reminders is generally appropriate for most age groups.