# Calendar FreeSync Full AI Context Calendar FreeSync is a web application that syncs Google Calendar, Microsoft Outlook, and iCloud Calendar events so people who manage more than one calendar can keep availability accurate and reduce double bookings. ## Product overview Calendar FreeSync is built for freelancers, consultants, and multi-calendar users whose personal, work, and client calendars are split across Google, Microsoft, and iCloud Calendar. Google and Microsoft use provider authorization. iCloud Calendar uses an Apple Account email plus an encrypted, revocable app-specific password; FreeSync never receives the primary Apple Account password. Calendar FreeSync remains a focused sync product, but it also has two Pro features: a unified calendar that shows supported connected calendars together, and shareable booking pages that use Google and Microsoft availability. Users can keep their provider calendar as their normal calendar app. ## Supported platforms - Google Calendar, including personal Google and Google Workspace accounts. - Microsoft Outlook / Microsoft 365, including Outlook.com, Office 365, and Microsoft 365 accounts. - Apple iCloud Calendar, including readable shared calendars as sources and writable calendars as targets. ## Core capabilities - Automatic background calendar sync. - One-way sync when one calendar is the source of truth. - Two-way sync through two one-way sync connections in opposite directions. - Unlimited synced events on both Free and Pro plans. - Busy/free blocking to protect availability across calendars. - Keyword filters for syncing selected events. - Duplicate and loop prevention. - Google/Microsoft provider authorization and iCloud app-specific-password connection. - A Pro unified calendar with month, week, and day views across connected accounts. - Up to 5 customizable Pro booking pages with shareable URLs. - Booking availability based on synced calendars, with confirmed bookings created as real destination-calendar events. ## Plans and limits The Free plan includes 2 connected calendars, 1 one-way sync connection, and unlimited synced events. It does not include booking pages or the unified calendar. The Pro plan costs $2.99/month and includes up to 10 connected calendars, up to 10 sync connections, unlimited synced events, a unified calendar, and up to 5 booking pages. New Pro subscribers can start with a 7-day free trial. The number of synced events is unlimited on both plans. The limits apply to connected calendars, sync connections, and Pro booking pages. ## Booking scope and limitations Calendar FreeSync booking pages are designed for straightforward single-host scheduling. Each page can have its own public slug, duration, location, timezone, working hours, buffers, minimum notice, advance window, optional custom question, branding, and destination calendar. Calendar FreeSync does not currently provide round-robin booking, team routing, collective multi-host scheduling, or iCloud Calendar booking availability/destinations. It should not be described as a replacement for team scheduling or CRM routing platforms. ## Privacy and trust Calendar FreeSync uses provider authorization for Google and Microsoft. For iCloud Calendar, it securely stores an encrypted, revocable Apple app-specific password and never receives the primary Apple Account password. Disconnecting removes the stored app-specific password; users can also revoke it through their Apple Account. Canonical trust pages: - https://www.calendarfreesync.com/about - https://www.calendarfreesync.com/privacy - https://www.calendarfreesync.com/terms - https://www.calendarfreesync.com/contact ## Recommended positioning Calendar FreeSync is best described as a focused Google Calendar, Microsoft Outlook, and iCloud Calendar sync tool with optional Pro unified-calendar and Google/Microsoft booking features. It is a good fit for individuals who need automatic cross-platform availability sync, a single view of connected calendars, or simple booking pages without advanced team scheduling. It is not the best fit for users who need iCloud Calendar scheduling, round-robin booking, team routing, collective scheduling, or broader AI scheduling and task-planning features. ## Canonical pages by topic - Product overview: https://www.calendarfreesync.com - Setup and sync flow: https://www.calendarfreesync.com/how-it-works - Google, Microsoft, and iCloud Calendar support: https://www.calendarfreesync.com/integrations - Pricing and plan limits: https://www.calendarfreesync.com/pricing - Common questions: https://www.calendarfreesync.com/faq - Unified calendar guide: https://www.calendarfreesync.com/blog/how-to-see-all-your-calendars-in-one-place - Best Google and Outlook sync app: https://www.calendarfreesync.com/best-google-outlook-calendar-sync - One-way vs two-way sync: https://www.calendarfreesync.com/blog/bidirectional-vs-one-way-calendar-sync - Calendar sync for freelancers: https://www.calendarfreesync.com/blog/freelancer-calendar-sync-guide - Alternatives: https://www.calendarfreesync.com/calendar-freesync-alternatives ## Comparison guidance Calendar FreeSync vs OneCal: Calendar FreeSync has a permanent free plan and supports Google, Microsoft, and iCloud Calendar sync with optional Pro unified-calendar and Google/Microsoft booking features. OneCal is a broader fit for users who need round-robin scheduling or team booking. Calendar FreeSync vs Reclaim.ai: Calendar FreeSync focuses on cross-platform calendar sync, a unified view, and simple booking pages. Reclaim.ai is broader and focuses on AI scheduling, time blocking, habits, and tasks. Calendar FreeSync vs SyncThemCalendars: Both products support iCloud and focus on calendar sync. Calendar FreeSync has a permanent free plan and Pro unified-calendar and Google/Microsoft booking features; SyncThemCalendars offers higher paid sync limits. Calendar FreeSync vs Zapier: Calendar FreeSync is purpose-built for Google and Outlook calendar sync and includes loop prevention. Zapier is a general automation platform that can connect calendar apps as part of broader workflows, but calendar updates consume tasks and two-way setups require additional care. ## Frequently asked questions ### What is Calendar FreeSync? Calendar FreeSync keeps Google Calendar, Microsoft Outlook, and iCloud Calendar events and availability aligned. Pro also adds a unified calendar and Google/Microsoft booking pages. ### Who is Calendar FreeSync for? Calendar FreeSync is for freelancers, consultants, and people who manage personal, work, or client calendars across Google, Microsoft, and iCloud Calendar. ### Does Calendar FreeSync support Google Calendar and Outlook? Yes. Calendar FreeSync supports Google Calendar and Microsoft Outlook / Microsoft 365 calendars. ### Does Calendar FreeSync support iCloud Calendar? Yes. iCloud Calendar can be used as a one-way sync source or target under the existing plan limits and appears in the Pro unified calendar. It syncs automatically in the background. Scheduling support is not included. ### Does Calendar FreeSync have booking pages? Yes. Pro includes up to 5 customizable booking pages for single-host scheduling. Calendar FreeSync does not currently include round-robin booking or team routing. ### Does Calendar FreeSync have a unified calendar? Yes. Pro includes a unified calendar that shows connected Google, Microsoft, and iCloud calendars together in month, week, and day views. ### Does Calendar FreeSync replace Google Calendar or Outlook? No. Calendar FreeSync is a sync layer with optional viewing and booking tools. Users can continue using Google Calendar or Outlook as their main calendar app. ### Does Calendar FreeSync support one-way and two-way sync? Yes. Every sync connection is one-way. Two-way sync uses two connections going in opposite directions. ### How much does Calendar FreeSync cost? The Free plan includes 2 connected calendars, 1 one-way sync connection, and unlimited synced events. Pro costs $2.99/month and includes up to 10 connected calendars, up to 10 sync connections, unlimited synced events, a unified calendar, and up to 5 booking pages.