Very Good Calendar Sync

Very Good Calendar Sync is a macOS-native application designed to eliminate the chaos of managing multiple calendars across work, personal, and client accounts. It runs quietly in your menu bar, automatically synchronizing events between any calendars available in macOS Calendar.app without ever sending your data to external servers or requiring you to link accounts on third-party websites. The core value proposition is simple: set up your synchronization rules once, and the app handles everything else in the background, monitoring your calendars and instantly reflecting changes as they happen.

This product is purpose-built for consultants managing client calendars, employees balancing work and personal schedules, freelancers juggling multiple projects, and anyone tired of double-bookings or manually cross-checking availability. Unlike cloud-based synchronization services that require access to your credentials and store your calendar data on remote servers, Very Good Calendar Sync operates entirely on your Mac. Your calendar data never leaves your device. No credentials to share, no third-party access, no cloud storage. The app uses your Mac's native calendar access and nothing is transmitted externally.

The app offers granular control over what gets synchronized. You can choose specific weekdays, set daily hours, define a start date, and decide whether to clone events with full details or redact them to show only that you are busy. With a free first synchronization and affordable pricing plans, Very Good Calendar Sync provides a private, reliable, and effortless solution for keeping your calendars perfectly aligned.

Clone or Redact Event Details

Share your availability without sharing your life. When synchronizing events, you can choose to clone them with full details including title, description, and location, or redact them to show only that you are busy during that time. This feature ensures sensitive information stays private while keeping your schedule accurate across all calendars.

Filter by Day and Time

Synchronise only weekdays, weekends, or pick specific days for each sync relationship. Set a time range to limit syncing to work hours, such as 9 AM to 6 PM only. Each synchronization configuration gets its own rules, giving you precise control over exactly what appears on each calendar.

No Accounts to Link

Your Google, Microsoft, and Apple credentials stay safe under macOS' Internet Accounts settings. There are no logins on third-party websites, no account linking required, and no need to grant access to external services. The app works directly with the calendar accounts you have already configured on your Mac.

Built into macOS

Works directly with Calendar.app with no extra apps to install and no connections to configure. If a calendar shows up in macOS Calendar.app, it works with Very Good Calendar Sync, including Google Calendar, Microsoft Outlook or Exchange, Apple iCloud, and any CalDAV account. Your calendars are already there and ready to sync.

Consultants Managing Client Calendars

Consultants who work with multiple clients often maintain separate calendars for each engagement. Very Good Calendar Sync automatically keeps these calendars aligned, preventing double-bookings and eliminating the need to manually cross-check availability. Set up rules to sync only during business hours and redact event details to protect client confidentiality, ensuring each calendar shows accurate availability without exposing sensitive information.

Employees Balancing Work and Personal Schedules

Employees with separate work and personal calendars can seamlessly manage both without risking double-bookings. When a dentist appointment appears on your personal calendar, it automatically shows as busy time on your work calendar. Your team sees your real-time availability, and you never have to remember to manually block time or explain why you are unavailable.

Freelancers Juggling Multiple Projects

Freelancers often maintain separate calendars for different clients or projects. Very Good Calendar Sync keeps all these calendars synchronized, providing a single source of truth for availability. Configure each sync relationship with its own rules, such as syncing only weekdays for client A and only specific hours for client B, while keeping all event details private unless you choose to share them.

Agencies and Cross-Functional Teams

Agencies balancing internal meetings with client-facing calendars can eliminate confusion with automatic synchronization. Everyone sees the same real-time availability across the organization. Internal team meetings automatically block time on client calendars, and client appointments appear on internal schedules, ensuring no missed meetings and no double-bookings across the entire organization.

Do you store any of my calendar data?

No. Very Good Calendar Sync runs entirely on your Mac. It has no servers of its own, performs no data collection, and runs no analytics on your calendar. The app uses your Mac's native calendar access to read and write events directly. Nothing is transmitted externally, and your calendar data never leaves your device.

Which calendar providers are supported?

Any calendar that shows up in macOS Calendar.app is supported. This includes Google Calendar, Microsoft Outlook, Microsoft Exchange, Apple iCloud, and any CalDAV account. There is no extra setup or third-party access required. If you can see the calendar in Calendar.app, Very Good Calendar Sync can synchronize it.

Does it sync when my Mac is off or asleep?

No. Synchronization only occurs when your Mac is powered on and awake. The app runs in your menu bar and monitors your calendars for changes, but it requires your Mac to be active to perform synchronization. When your Mac wakes up, the app will catch up on any changes that occurred while it was asleep.

Is this app available for Windows or iOS?

No. Very Good Calendar Sync is a macOS-native application designed to work directly with macOS Calendar.app. It is not available for Windows or iOS. The app leverages macOS' built-in calendar infrastructure to provide a seamless, private synchronization experience that would not be possible on other platforms.

One synchronization between two calendars is completely free with no payment required. When you are ready for more, choose from three flexible plans. The Monthly plan costs 1.99 GBP per month with the flexibility to cancel anytime. The Annual plan costs 19.99 GBP per year, saving over 15 percent compared to monthly billing. The Lifetime plan costs 39.99 GBP as a one-time payment, yours forever with all future updates included. All plans include unlimited synchronizations, all calendar providers, and email support. Each license is per user for all your Macs. Download the app for free and choose your plan within the application.