Very Good Calendar Sync

Very Good Calendar Sync is a revolutionary, AI-native application designed to eliminate the chaos of managing multiple calendars across work, personal, and client domains. It operates entirely on your Mac, leveraging the native macOS Calendar.app to synchronize any calendar you already have configured, including Google Calendar, Microsoft Outlook/Exchange, Apple iCloud, and any CalDAV account. The core value proposition is a paradigm shift in calendar management: it provides automatic, private, and highly customizable synchronization without ever linking your accounts, storing your data in the cloud, or exposing sensitive information to third parties.

This tool is built for the modern professional—consultants, freelancers, employees, and cross-functional teams—who are tired of double-bookings, manual cross-checking, and the privacy compromises inherent in traditional cloud-based sync solutions. By running directly on your Mac, it acts as a silent, intelligent agent in your menu bar. It monitors your calendars in real-time and automatically syncs changes, such as a new meeting appearing on your work calendar instantly on your personal calendar. You retain total control over what is shared: you can filter by specific weekdays (e.g., sync only workdays), set daily hours (e.g., 9 AM to 6 PM), and choose a start date for synchronization. Crucially, you decide the level of detail—clone events with full details or redact them to show only that you are busy. This ensures your availability is always honest and up-to-date, while your life remains private. Very Good Calendar Sync represents the future of personal data sovereignty, where your calendar data never leaves your machine, and no credentials are ever shared. It is the ultimate solution for anyone who demands both seamless productivity and uncompromising privacy.

Clone or Redact

Share your availability without sharing your life. This feature gives you granular control over the visibility of your events. You can choose to clone events with full details, including title, description, and location, or redact them to show only that you are busy. This is essential for protecting sensitive information, such as client names or personal appointments, while still maintaining an accurate and honest calendar for colleagues or clients.

Stays Out of the Way

Designed for frictionless operation, the app runs quietly in your Mac's menu bar. You set up your synchronization rules once, and then you can forget about it. The app operates autonomously in the background, automatically synchronizing your calendars whenever any changes are detected. This "set and forget" architecture ensures your schedules are always aligned without any manual intervention or daily management.

No Accounts to Link

Your credentials remain completely secure under macOS' native Internet Accounts system. There are no logins on third-party websites, no cloud-based sync servers, and no external services to configure. The app simply uses the calendar access permissions you have already granted to macOS. This eliminates a major attack vector for data breaches and ensures your Google, Microsoft, and Apple credentials are never exposed.

Filter by Day and Time

You can apply highly specific rules to each synchronization. Choose to synchronize only on weekdays, weekends, or pick individual days. Set a precise time range, such as 9 AM to 6 PM, to limit syncing to your core work hours. Each synchronization can have its own unique set of rules, giving you surgical control over what gets shared and when, preventing your personal time from being cluttered by work events.

Consultants Managing Client Calendars

Consultants often juggle multiple clients, each with their own calendar ecosystem. Very Good Calendar Sync acts as a centralized synchronization hub. You can set up a sync between your master work calendar and each client's calendar, using redact mode to share only your availability without revealing confidential project details or other client names. The time filter ensures only business hours are shared, preventing weekend or late-night scheduling conflicts.

Employees Balancing Work and Personal Schedules

For employees with both a corporate calendar (Outlook/Exchange) and a personal one (iCloud/Google), double-bookings are a constant threat. This app provides a seamless bridge. You can clone personal events (like dentist appointments) onto your work calendar with full details, so your team sees your unavailability. Simultaneously, you can redact work meetings on your personal calendar to show only busy time, protecting work privacy while maintaining an accurate personal schedule.

Freelancers Juggling Multiple Projects

Freelancers often use separate calendars for different projects or clients. Very Good Calendar Sync allows you to aggregate all these calendars into a single master view. You can set unique rules for each sync: clone all events from Project A with full details, but only redact events from Project B. The automatic background sync ensures that when a new deadline is added to one project, it instantly blocks off time on all your other calendars, preventing over-commitment.

Agencies and Cross-Functional Teams

Agencies need to balance internal team calendars with client-facing schedules. This app enables a unified view of real-time availability across the entire organization. Internal meetings can be automatically blocked on client calendars (with redacted details), and client calls can be protected on internal calendars. This eliminates the guesswork and confusion of manual updates, ensuring that everyone from account managers to creative directors sees the same, honest truth about team availability.

Do you store any of my calendar data?

No. Very Good Calendar Sync operates entirely on your Mac. It has no servers of its own, no data collection systems, and no analytics on your calendar. Your data never leaves your machine. The app simply uses your Mac's native calendar access to read and write events. Nothing is transmitted externally, ensuring your privacy is absolute.

Which calendar providers are supported?

The app supports any calendar that appears in macOS Calendar.app. This includes Google Calendar, Microsoft Outlook/Exchange, Apple iCloud, and any CalDAV account. There is no extra setup or third-party access required. If it shows up in your Calendar.app, it works with Very Good Calendar Sync.

Does it sync when my Mac is off or asleep?

No. The app runs entirely on your Mac and requires your machine to be powered on and awake to perform synchronizations. When your Mac is off or asleep, no syncing occurs. However, once your Mac wakes up, the app will automatically detect and sync any changes that occurred while it was asleep.

Is this app available for Windows or iOS?

No. Very Good Calendar Sync is a macOS-only application. It is built directly into the macOS ecosystem and leverages the native Calendar.app and Internet Accounts systems. There are currently no versions for Windows or iOS, as the app's architecture is deeply integrated with macOS-specific frameworks.

One synchronization between two calendars is completely free. No payment required. When you are ready for more, pick a plan.

MONTHLY
£1.99 per month. Flexible month-to-month. Cancel anytime.

Best Value
ANNUAL
£19.99 per year. Best value. Save over 15% vs monthly.

LIFETIME
£39.99 one time. One payment, yours forever. All future updates included.

All plans include unlimited synchronisations, all calendar providers and email support. Per-user license for all your Macs.