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Note: As of 19 June 2013, Spanning Sync service went offline and sales have permanently ceased. The developer recommends using the uninstaller provided in the download to remove the preference pane.

Spanning Sync... Synchronize Google Calendar and Apple iCal.

Save $5 on Spanning Sync through this discount link! Spanning Sync costs $25/year or $65/forever.

Share calendars between multiple Macs. Share calendars with your coworkers, family, and friends. And while you're at it, connect Google Calendar to your iPod, mobile more...

What's New

Version 3.3: Release notes were unavailable when this listing was updated.


OS X 10.5 or later

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Spanning Sync User Discussion

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Stilgar Member IconReview+12

I was using this successfully to sync my Microsoft Exchange account at work into Google Calendar so I could add events to either and have them stay in sync properly.

It was working great until 10.7.4 shipped. Apple made changes which broke this software. Apple told the developers they should be using a different library and the developers said it's too much work to migrate their code. As a result, this product is no longer being supported. Here's their blog post:

Because I was hoping Microsoft Office, Apple or Google would come up with a solution that did not involve 3rd party software, I only bought a yearly subscription to Spanning Sync. Due to the issues I mentioned, I only got about six months worth of use out of the software. I was not offered any sort of refund or credit toward another product which was disappointing.

Reply0 replies
Version 3.2
alexbrown Member IconReview+9

- No contacts to sync - I'm using iCloud
- $65 for nothing

Reply0 replies
Version 3.2
curlygirl Member IconReview+6

Are you joking? Do you really think people will pay $65 for functinality other apps offer for FREE?!

Reply0 replies
Version 3.2
Goldyman Member IconReview+2

Yes, it's a little pricey, but get this: IT WORKS. It works beautifully, in fact, where others have failed. Seamless integration into the workflow. Now my Google contacts and calendar, my Apple address book and iCal and my Palm Pre are totally in sync.

Reply0 replies
Version 3.1.2
Shane-Smith Member IconComment+273

$65! Are you mad!

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Version 3.1.2
John_in_cincy Member IconComment+0

I ran into some problems using the ap yesterday (4/09/10) and overnight to this morning (when I switched it to Manual sync only). The syncs would begin again within seconds of the last sync. I changed all my Mac cals (iMac, iPod Touch and iPad) to ignore events older than 30 days), turned off MobileMe, and even used the Start Over feature, then Replace Data on Google (which deletes Google data and replaces with data from my computer) -- all to no avail. All events on my Mac calendars appear to be OK, but Google is missing an event from yesterday. I would be cautious about this product. I also note others are having problems in the forum at the developer site. Great idea *and* I'd be cautious.

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Version 3.0.4
Ryan Chaney Member IconComment+0
Ryan Chaney

I've been using spanning sync on Snow Leopard to sync iCal with Google Calendar. It works really well and allows me to organise my life at home and at work. To save $5 on the price of spanning sync use this discount code: E9P3TM


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Version 3.0.4
Simonszu Member IconComment+4

This Tool is also with Leopard 10.5 totally obsolete. The 10.5-iCal is able to talk with Google through CalDAV. Just search for "Google CalDAV" and you get a tutorial how to set it up. No need for spanning sync.

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Version 3.0.4
Lito_d Member IconComment+8

Snow Leopard does have google contact syncing but it still doesn't work for me. My last name and many people in my address book have spaces in their last name and google mangles these names. Google sees a name such as de la cruz as cruz and dumps the de la into the middle name spot. I've run into a couple problems, sometimes google contacts such as this will sync back to my snow leopard address book as a new contact or it will just reformat the name. So...Spanning Sync is still a needed app for those people who have issues such as these. Somehow Spanning Sync works around these issues.

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Version 3.0.2b
Wuddel Member IconComment+9

Snow Leopard's iCal can now talk directly to Google Calendar ... just to let you know.

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Version 3.0.1
user icon+0
Version 3.2
> 3 15


Current Version (3.x)


Downloads 17,964
Version Downloads 227
License Demo
Date 04 Jul 2012
Platform OS X
Price $65.00
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