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CalSyncAlert - Calendar Alarm

CalSyncAlert - Calendar Alarm

Auto Event Alerts & Reminders

2 ratings
2 reviews
🔧 Utilities
📊 Productivity
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 10, 2025
  • August 17, 2026

Features

Developer

kosuke konuma
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iphone
ipad
🧾$7.99
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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

1.15

August 17, 2026

v1.15 — Fixes for alarm cancellation and notifications. • Fixed alarms still ringing for an event you had already deleted. • Fixed "Dismiss" on a notification also removing the same event's other alerts. • Fixed the snooze duration setting being ignored, so snooze was always 5 minutes. • Fixed notifications arriving up to a minute earlier than the set time. • Fixed a next alarm being scheduled after you turned alarms off. • Reworked widget refresh so the display stays more consistent. • The Shortcuts action name now appears in your own language. Thank you for using CalSync Alert.

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Subscription plans

Monthly

All features included. Cancel anytime.

$0.991 Month
How to cancel CalSyncAlert subscription ⁉️
1

In-App Purchases

$7.99

Full Version

Unlock all features. Use forever after purchase.

User reviews

Most RecentHighest RatedLowest Rated

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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Mel19085Mel19085

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
JaccennJaccenn

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.

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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.