Very Good Calendar Sync

Very Good Calendar Sync is a privacy-focused macOS application designed to eliminate the chaos of managing multiple calendars across work, personal, and client accounts. The app runs entirely on your Mac and works directly with the built-in macOS Calendar.app, allowing you to synchronize any calendar that appears there, including Google Calendar, Microsoft Outlook, Apple iCloud, and any CalDAV account. Its core value proposition is simple: keep your calendars perfectly synchronized automatically and privately, without linking accounts or exposing sensitive data to third parties.

The product is built for consultants managing client calendars, employees balancing work and personal schedules, freelancers juggling multiple projects, and anyone tired of calendar chaos. Unlike cloud-based synchronization services that require you to share credentials or store data on external servers, Very Good Calendar Sync processes everything locally on your device. Your calendar data never leaves your Mac. There are no credentials to share, no third-party access, and no cloud storage involved. The app uses your Mac's native calendar access and transmits nothing externally.

Setting up the app takes approximately two minutes. Once configured, it runs quietly in your menu bar and monitors your calendars for changes. New meetings on your work calendar appear automatically on your personal calendar. The app offers granular control over what gets synchronized, including filtering by specific weekdays, setting daily hours, choosing a start date, and deciding whether to share full event details or only your busy time. A single synchronization between two calendars is free, with affordable paid plans available for users who need more.

Clone or Redact Event Details

Share your availability without sharing your personal life. When synchronizing events, you have complete control over what information is visible on the destination calendar. You can choose to clone events with full details, including title, description, and location, or you can redact them to show only that you are busy. This feature is essential for professionals who need to block time on client calendars without revealing the nature of their other commitments. Your sensitive information stays private while your availability remains accurate and up to date.

Filter by Day and Time

Each synchronization can have its own customized rules for when events should be shared. You can synchronize only weekdays, only weekends, or pick specific days of the week. Additionally, you can set a time range to limit syncing to specific hours, such as 9 AM to 6 PM. This means you can automatically exclude evenings and weekends from your work calendar sync, ensuring that personal appointments outside working hours never appear on your professional calendar. The flexibility allows you to maintain boundaries between different areas of your life.

No Accounts to Link

Your Google, Microsoft, and Apple credentials remain completely safe under macOS Internet Accounts. There are no logins on third-party websites and no need to grant access to external services. The app simply works with the calendar accounts you have already configured on your Mac. This eliminates the security risks associated with sharing passwords or API tokens with third-party synchronization services. You maintain full control over your authentication credentials, and no external system ever has access to your login information.

Built into macOS

Very Good Calendar Sync works directly with macOS Calendar.app. There are no extra apps to install on your devices and no connections to configure. Your calendars are already set up and ready to synchronize. The app integrates seamlessly with the native calendar experience, so you do not need to learn new software or change your existing workflow. It simply enhances what you already have by adding automatic synchronization capabilities between any two or more calendars that appear in Calendar.app.

Consultants Managing Client Calendars

Consultants often maintain separate calendars for each client to keep projects and meetings organized. Without synchronization, they risk double-booking or missing appointments because one client cannot see availability on another clients calendar. Very Good Calendar Sync allows consultants to keep every client calendar aligned automatically. They can set rules to synchronize only during business hours and choose to share only busy time rather than full event details, protecting client confidentiality while ensuring accurate availability across all accounts.

Employees Balancing Work and Personal Schedules

Professionals who manage both work and personal calendars frequently encounter scheduling conflicts. A dentist appointment might be invisible to colleagues, leading to meeting requests during that time. With Very Good Calendar Sync, employees can synchronize their personal calendar to their work calendar as busy time only. This ensures that team members see when they are unavailable without seeing personal details. The automatic synchronization eliminates the need to manually block time or explain absences, reducing administrative overhead and preventing double-booking.

Freelancers Juggling Multiple Projects

Freelancers often work with several clients simultaneously, each with their own calendar system. Keeping all these calendars consistent is a significant challenge that can lead to missed deadlines or overlapping commitments. Very Good Calendar Sync enables freelancers to synchronize all their project calendars into a single view or selectively share availability between clients. The ability to filter by day and time means they can protect evenings and weekends for personal time while keeping business hours fully coordinated across all engagements.

Agencies and Cross-Functional Teams

Agencies managing internal team calendars alongside client-facing schedules face particular complexity. Internal meetings, stand-ups, and planning sessions need to be visible to the team but should not appear on client calendars. Similarly, client meetings need to block time internally. Very Good Calendar Sync allows agencies to balance these requirements by synchronizing selectively between different calendar groups. Everyone sees the same real-time availability, eliminating confusion and ensuring that internal and external commitments are properly coordinated.

Do you store any of my calendar data?

No. Very Good Calendar Sync runs entirely on your Mac and does not store any of your calendar data on external servers. The app has no servers of its own, does not collect data, and does not run analytics on your calendar. It simply facilitates direct communication between your calendars using your Macs native calendar access. Nothing is transmitted externally, and your information never leaves your device.

Which calendar providers are supported?

Very Good Calendar Sync supports any calendar that appears in macOS Calendar.app. This includes Google Calendar, Microsoft Outlook and Exchange, Apple iCloud, and any CalDAV account. If you can see the calendar in Calendar.app on your Mac, the app can synchronize it. There is no need for additional setup or third-party access beyond what you have already configured on your Mac.

Does it sync when my Mac is off or asleep?

No. Because Very Good Calendar Sync runs entirely on your Mac, synchronization only occurs when your Mac is powered on and awake. The app monitors your calendars in the background while your computer is active and synchronizes changes automatically. If you need continuous synchronization, your Mac must remain on and connected to the internet.

Is this app available for Windows or iOS?

Very Good Calendar Sync is currently available only for macOS. It is designed specifically to work with macOS Calendar.app and leverages native macOS features for calendar access and synchronization. There are no versions for Windows or iOS at this time. The app is built for anyone using a Mac who wants to keep their calendars synchronized without compromising privacy.

Very Good Calendar Sync offers three pricing plans to suit different needs. One synchronization between two calendars is completely free with no payment required. For users who need more, paid plans are available. The Monthly plan costs 1.99 pounds per month and offers flexible month-to-month billing with the ability to cancel anytime. The Annual plan costs 19.99 pounds per year, saving over 15 percent compared to the monthly plan. The Lifetime plan costs 39.99 pounds as a one-time payment and includes all future updates. All plans include unlimited synchronizations, support for all calendar providers, and email support. Each license is per user for all your Macs. You can download the app for free and choose your plan within the application.