Is SyncThemCalendars worth trying for syncing multiple calendars?
Updated
SyncThemCalendars is worth trying if you need to keep Google, Outlook, and Apple iCloud calendars in sync automatically and want to avoid manual copying. The site offers a 14-day free trial with no credit card required, a 2-minute setup, and unlimited event syncing across unlimited calendars on every plan. It's a reasonable fit for professionals juggling multiple schedules who want a set-and-forget tool with privacy controls. It may be less compelling if you only need a one-time export or you're unwilling to connect your calendar accounts to a third-party service.
What SyncThemCalendars actually does
According to the site, the service creates a sync between two calendars and then automatically copies upcoming events for you. You connect your Google, Outlook, or iCloud calendars, choose a source and a target, and the tool handles the rest.
Key capabilities from the page:
- One-way or two-way sync — you decide whether calendars mirror events both ways or only copy from one to the other.
- Real-time free/busy copying — the site describes copying free/busy times across calendars in real time.
- Unlimited events and calendars — every plan syncs an unlimited number of events across an unlimited number of calendars.
- Privacy controls — you can hide the details of any field in the copied event (title, description, location, and more) behind a simple "Busy" block.
The setup is described as taking about 2 minutes with no installs and no IT project.
The privacy question
This is often the deciding factor for calendar tools, and the site addresses it directly. SyncThemCalendars states that it only uses your data to copy events between your calendars — "nothing else, ever." The field-hiding feature means you can sync availability without exposing event titles, descriptions, or locations to the target calendar.
If your main concern is not leaking meeting details across work and personal calendars, the "Busy" block option is the relevant feature to test during the trial. The site does not detail its encryption or data-retention practices in the material provided, so if those specifics matter to you, verify them before committing beyond the trial.
Pricing and trial
The page signals "simple pricing that scales with you" and a 14-day free trial with no credit card required. It does not list specific price tiers or amounts in the available material, so you'll need to check the pricing page for current numbers. What is confirmed: the trial requires no card, and unlimited events/calendars apply to every plan.
What real users report
The site cites ratings from third-party platforms:
| Platform | Reviews | Rating |
|---|---|---|
| Capterra | 120+ | 4.9 |
| GetApp | 52+ | 4.9 |
| Google Workspace Marketplace | 21K+ installs | 4.6 |
User comments on the Google Workspace Marketplace highlight a few practical points worth noting:
- One reviewer (Neicee Sweet) valued not overbooking herself while managing a church schedule and two small businesses, calling switching between calendars "overwhelming."
- Isra Hashmi noted that a free alternative didn't show up on the phone calendar, while SyncThemCalendars synced "seamlessly with both desktop and phone Google Calendar."
- Dustin McCloud had searched all day for a way to sync a shared webcal with a personal iCal before finding the tool.
The recurring theme is cross-device reliability and relief from manual switching — the exact pain points a sync tool should solve.
Who should try it, and who shouldn't
Try it if you:
- Manage schedules across Google, Outlook, and/or iCloud and want automatic syncing.
- Need one-way or two-way sync flexibility.
- Want to share availability without exposing event details.
- Prefer a no-install, browser-based setup.
Look elsewhere if you:
- Only need a one-time calendar export or import.
- Don't want to connect calendar accounts to a third-party service.
- Need confirmed enterprise-grade compliance details, which aren't specified in the available material.
How to evaluate it during the trial
- Connect two calendars you actually use (for example, work Outlook and personal Google).
- Create a one-way sync first and confirm events appear on the target, including on your phone.
- Test the "Busy" block on a calendar you share with others to see whether hidden details meet your needs.
- Try a two-way sync to check for duplicates or loops before relying on it.
- Check the pricing page before the 14 days end so you know the cost of continuing.
The trial requires no credit card, so the main cost of testing is the few minutes of setup. Given the 2-minute setup claim and the unlimited-event model, the trial is a low-risk way to confirm whether the sync direction and privacy controls match how you actually work.