G2

Sara S.

accountant

Small-Business (50 or fewer emp.)

10/15/2026

"The must-have calendar sync tool for expeditious event syncing between multiple workspace calendars"

5/5

What do you like best about OneCal?

OneCal tackles many to many and one to many calendar syncs with aplomb. I have a lot of recurring events and when anything changes, the updates propagate with lightning speed. Review collected by and hosted on G2.com.

What do you dislike about OneCal?

Limit of 8 calendar syncs at once, but it's not crucial as there's an easy workaround to achieve this limitation. Review collected by and hosted on G2.com.

What problems is OneCal solving and how is that benefiting you?

OneCal solves 3 issues for me: being able to have my external calendars sync amongst each other so I don't get booked when I'm not available, syncing details of my external calendars to my primary calendar so tools with only 1 workspace calendar visible also see the events, and being able to have booking links saved to non-primary calendars. It's a huge timesaver. Review collected by and hosted on G2.com.

Response from Eraldo Forgoli of OneCal

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Thank you, Sara! It's great to hear you're enjoying OneCal.

We limit the number of calendars in a multi way calendar sync on purpose, to make sure the calendar sync is reliable. Keeping each calendar sync smaller means every change copies over quickly and correctly. If you need more calendars in a single calendar synchronization configuration, please contact us at contact@onecal.io and we can increase the limit for you. You can also split your calendars across a few one-way calendar syncs, like the workaround you mentioned.

Thanks again for your feedback! If you have any questions or suggestions, you can reach us at contact@onecal.io.