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Unleash the power of collaborative Gmail and Google Contacts. Share contacts...even outside your domain. You control what's shared, who can share, edit, view...even connect Android, iOS, and Outlook.
398,910 users
We believe that your contacts are your most precious asset.
CoContacts (formerly Ginza Contacts) is the preferred app for unleashing their power.

Unleash the power of collaborative Gmail and Google Contacts. Share contacts...even outside your domain. You control what's shared, who can share, edit, view...even connect Android, iOS, and Outlook.

-Multi-user editing of just those you want shared
-Crowdsource contacts: sync details, save time
-Gmail, Google, Android...iOS, Blackberry, Outlook

Start enjoying a productivity surge today.
Install your free trial - you'll be syncing within 20 minutes.

*Secure contact sharing and syncing
*Automatic capture and share important connections
*Stop data loss via knowledge hoarding, evaporation, duplication, error
*Save time, work smarter: share + crowdsource details
*Knowledge moves from phone to tablet to desktop, curated centrally

*Sync Gmail, Google Contacts, Android, Outlook, iOS devices, Blackberries
*Sync as often as every 15 minutes
*Control edit and view person, contact group, Google Group
*Share in your domain or any Gmail user
*100% cloud-hosted on your existing Google service: easy, safe, continuous backup
*Built for Marketplace, works with all Google Apps versions
*Multilingual: your language on request

*15-day unlimited trial of all features
*No credit card
*If you don't love it, roll back in seconds
    ...or tell us what you need for a perfect fit!


"Simple, fast, intuitive! thanks!"

"Dropbox for contacts! How did we live without it?"

"The best Gmail contact syncing product."

"Very easy. It works with your iPhone address book too!"

"Wow: I couldn't believe how easy it was to set up compared to Floreysoft."

"I should have tried this first! 20 minutes and I am done. Yay!"

Pricing Details:
Free for up to 3 collaborators, Pro tiers: $4.99 to $99.99, depending on use. See
February 23, 2016
I love this app. I use it to share my contacts and manage my law practice. It is worth the price and has saved me countless hours collaborating on a case.
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January 14, 2016
To many issues with contacts not syncing. I have 13 uses with 6000+ contacts. This solution chokes on it.
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October 13, 2016
Couldnt agree more !
December 6, 2015
We have used co-contacts fro about 6 months, very helpful, very easy to use, reliable.
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April 16, 2015
Sync rarely worked seamlessly. Had to request support multiple times over a couple years before giving up.
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A Google User
May 28, 2014
While we have been using Ginza contacts for well over a year we continue to find issues with propagation and consistency within the contacts listed. We currently have over 2500 contacts shared across 44 users, and I don't think any two users have the same number of contacts listed in the shared group. Adding additional users can take days before they receive their first sync of contacts. Changes and deletions seem to be very problematic if they ever propagate at all. Paying for premium sync does not seem to make any sort of difference in the timing involved, other than making sure they were done by the following morning. Since removing premium sync costs, things have definitely gotten slower. While I did get a call from support when I raised my concerns with them, I asked for an email confirmation of everything we discussed and never received said email.
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April 3, 2013
When my company switched to Google Apps I was shocked that they didn't offer a comprehensive address book sharing option. Ginza Contacts makes sharing contacts for our firm very easy. It works with your iPhone address book too!
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April 3, 2013
After trying many free and costly contact syncing software, I tried Ginza Contacts. This App was sooooo easy to use and met every need I had for a diverse group of Gmail users (diverse means users who were unable to use a PC to those who thought they could easily run a PC and messed it all up). When I had questions or created my own problems (id10t problems) they provided great support and suggestions to make it better for my situation and even saved me money. It worked fine and I never had a problem (except for what I created on my own)!
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A Google User
February 23, 2013
Really helped my teams contact's collaboration!
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A Google User
October 31, 2012
Worked flawlessly for a couple months then stopped syncing out of the blue. Not a peep from Ginza - Emails, voicemails etc.
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September 18, 2012
simple, fast, intuitive! thanks!
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October 16, 2015
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