
OneCal
UnclaimedSync multiple calendars in real-time, avoid double bookings, and manage all events in one place.
Visit WebsiteThe Bottom Line
Entry price
Paid plans only
Biggest pro
Prevents double bookings across multiple calendar providers effectively.
Biggest con
No free tier, only a 14-day free trial.
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.
What is OneCal?
Available on: Web, iOS, Android
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 Across the Web
Ratings aggregated from independent review platforms. Learn more
Preview
Key Features
Pricing Plans
Free TrialPricing checked Jun 14, 2026
Starter
$5 / user/month
Everything in all plans, plus:
- 2 Calendars
- Standard Support
Essential
$10 / user/month
Everything in all plans, plus:
- 5 Calendars
- Standard Support
Premium
$25 / user/month
Everything in all plans, plus:
- 50 Calendars
- Dedicated Support
Included in all plans
- Unlimited Calendar Syncs
- Unlimited One-on-one Scheduling Links
- Unlimited Collective Scheduling Links
- Scheduling Links Branding
- Calendar View
- User Provisioning API
- Admin Managed Accounts
- Remove OneCal Branding
How OneCal's pricing compares
At $5/mo, OneCal is the most affordable of its 5 direct competitors.
Entry paid plan, monthly. Pricing checked Jun 14, 2026.
Reviews

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Explore More
OneCal FAQ
How does OneCal help prevent double bookings across different calendar services?
Which teams would benefit most from using OneCal?
How does OneCal compare to Calendly for scheduling meetings?
What kind of privacy controls does OneCal offer for synced events?
Does OneCal include a free tier for users?
Can users manage all their connected calendars from a single interface in OneCal?
What are the primary limitations of using OneCal?
Source: onecal.io