gSyncit is a Microsoft Outlook add-in that allows for syncing Outlook calendars, contacts, notes, and tasks with Google, Toodledo, Evernote, Dropbox, Simplenote,...
Best OneCal Alternatives ranked by AI · updated Aug 2026
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OneCal is a calendar synchronization and scheduling platform for users managing multiple Google or Microsoft calendars. It combines calendar syncing with booking links and availability management.
Top 6 OneCal alternatives
Outlook CalDav Synchronizer is a free Outlook plugin that synchronizes events, tasks, and contacts between Outlook and CalDAV/CardDAV servers.
A tool to sync your Outlook and Google calendars bidirectionally
SyncThemCalendars is an online calendar synchronization service for people who need to keep events aligned across multiple calendar accounts. It focuses on...
Pros
- Designed specifically for cross-account calendar synchronization
- Can reduce manual duplication between separate calendar services
- Web-based setup avoids installing a desktop application
Cons
- Fewer documented integrations than larger calendar-sync platforms
- Pricing and plan details are less transparent than competitors
- Advanced conflict-resolution and filtering options may be limited
5
SyncGene allows synchronization of contacts, calendars, and tasks across multiple platforms and devices.
Pros
- Multi-platform support
- Real-time synchronization
Cons
- Some features limited to premium users
- Complex setup for beginners
Free, with premium subscription options
6
CalendarBridge
CalendarBridge
CalendarBridge is a cloud service for syncing calendars across Google Calendar, Microsoft Outlook, and other supported providers. It is aimed at individuals...
Pros
- More mature cross-provider support than SyncThemCalendars
- Offers configurable one-way and two-way synchronization
- Handles common Google and Microsoft calendar workflows well
Cons
- Paid plans are needed for more advanced synchronization scenarios
- Setup can be confusing when several calendars have overlapping permissions
- Less useful for users who only need a single native calendar app
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