SyncThemCalendars review

SyncThemCalendars does one job: keep two or more calendars in step so nobody books you twice. You connect Google, Outlook or iCloud calendars, choose a source and a target, and the service copies every upcoming event, one way or both ways. A privacy option hides the title, description, location and other fields behind a simple Busy block, which is what most people want when a personal appointment lands on a work calendar. Every plan syncs unlimited events across unlimited calendars, and the vendor says setup takes about 2 minutes with no installs. Plans differ only by the number of syncs: Basic at $3.99 per month billed yearly ($47.88) includes 5, Premium at $7.99 includes 16 and Professional at $17.99 includes 36, all for 1 user and all with a 14-day free trial. There is no calendar app, booking page or task view, so it works best paired with whatever calendar app you already like.

Who it is for

people who only need busy blocks copied between accounts

Price

No free plan, 14-day free trial; Basic $3.99 per month billed yearly ($47.88) for 5 calendar syncs.

Basic $ 3.99 /mo $47.88 billed yearly
Quoted from the vendor pricing page on November 11, 2026.

Key features

• One-way or two-way syncs between Google, Outlook and iCloud
• Hide titles, descriptions and locations behind a Busy block
• Unlimited events and unlimited calendars of all types on every plan
• 2-minute setup with no installs
• Plans by number of syncs: 5, 16 or 36

Strengths and weaknesses

• Strength: Cheapest paid plan on this list at $3.99 per month billed yearly
• Strength: Basic includes 5 calendar syncs
• Strength: 14-day trial without a credit card
• Weakness: No calendar app of its own; you keep using your existing apps
• Weakness: No scheduling links or booking pages
• Weakness: Every plan covers 1 user

Key facts

• Basic: $3.99 per month billed yearly, 5 syncs
• Premium: $7.99 per month billed yearly, 16 syncs
• Professional: $17.99 per month billed yearly, 36 syncs
• Providers: Google, Outlook, iCloud

Where it ranks

SyncThemCalendars is No. 7 in our Best Apps to Manage Multiple Calendars verdict.