OneCal (calendar): Sync multiple calendars in real-time, avoid double bookings, and manage all events in one place. OneCal is a calendar synchronization tool designed to prevent scheduling conflicts and simplify calendar management for individuals and teams. It seamlessly syncs events across Google Calendar, Microsoft Outlook, and Apple iCloud calendars in real-time, ensuring users are never double-booked. Key capabilities: Real-time multi-way calendar syncing (Google, Outlook, iCloud), Privacy-focused sync with customizable event detail control (e.g., exclude titles, participants), Unified calendar interface for managing all connected calendars, Individual and collective scheduling links, Ability to create, update, and delete meetings from unified view. OneCal is paid-only, with most plans including a trial period. Buyers most often compare OneCal against Fantastical, Reclaim, Motion.
TL;DR - OneCal
Syncs Google, Outlook, and iCloud calendars in real-time to prevent double bookings.
Offers privacy controls for event details shared during synchronization.
Provides a unified calendar view and easy-to-share scheduling links.
Pricing: Paid only
Best for: Enterprises & pros
4.7/5 across review platforms
Pros & Cons
Pros
Prevents double bookings across multiple calendar providers effectively.
Offers granular control over privacy and shared event details.
Simplifies scheduling with easy-to-share links.
Provides a single, unified view for all calendars.
Strong commitment to data security and privacy (no data stored, analyzed, or sold).
Cons
No free tier, only a 14-day free trial.
Pricing is per user, which can add up for larger teams.
iCloud calendar updates can take up to 10 minutes to reflect.
Ratings aggregated from independent review platforms. Learn more
Preview
Key Features
Real-time multi-way calendar syncing (Google, Outlook, iCloud)Privacy-focused sync with customizable event detail control (e.g., exclude titles, participants)Unified calendar interface for managing all connected calendarsIndividual and collective scheduling linksAbility to create, update, and delete meetings from unified viewRSVP to events and join conference calls directlyMobile-friendly user experienceSecure OAuth2 connections and minimum permission requests
OneCal is a calendar synchronization tool designed to prevent scheduling conflicts and simplify calendar management for individuals and teams. It seamlessly syncs events across Google Calendar, Microsoft Outlook, and Apple iCloud calendars in real-time, ensuring users are never double-booked. The platform offers privacy-focused syncing options, allowing users to control the level of detail shared between calendars, such as excluding event titles or specific information.
Beyond syncing, OneCal provides a unified calendar interface to manage all connected calendars from a single view. Users can create, update, and delete meetings, RSVP to events, and join conference calls directly within the platform. It also facilitates easy scheduling by generating individual or team scheduling links, eliminating the need for back-and-forth communication. OneCal is ideal for professionals, teams, and anyone managing multiple personal and professional calendars who needs to maintain accurate availability and streamline their scheduling process.
The product emphasizes strong data security and privacy, utilizing secure OAuth2 connections, requesting minimum necessary permissions, and encrypting data in transit and at rest. It does not store, analyze, or sell any calendar event data, making it a trustworthy solution for sensitive scheduling needs.
OneCal is a calendar synchronization tool that syncs events across Google, Outlook, and iCloud calendars in real-time to prevent double bookings. It also offers a unified calendar interface and scheduling links.
How much does OneCal cost?
OneCal offers three paid plans: Starter at $5/user/month, Essential at $10/user/month, and Premium at $25/user/month, all billed annually. Monthly billing options are also available at a higher rate. All plans include a 14-day free trial.
Is OneCal free?
OneCal is not free, but it offers a 14-day free trial for all its plans, which does not require a credit card to start.
Who is OneCal for?
OneCal is for individuals and teams who manage multiple calendars (Google, Outlook, iCloud) and want to avoid scheduling conflicts, streamline their booking process, and view all their commitments in a single, unified interface. It's particularly useful for professionals and organizations concerned with privacy and data security.