Shared Contacts for Gmail® Sync Booster
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-17.
The Sync Booster will update any changes to your shared contacts immediately, making contact sharing faster than ever!

With Shared Contacts for Gmail® Sync Booster you will never have to wait for your shared contacts to be updated. Sync Booster will sync any changes to your shared contacts immediately.
Users in Shared Contacts for Gmail can install this extension that will instantly push their contact updates to the other users' accounts.
- Available for Evaluation and Enterprise versions - To upgrade go to: http://bit.ly/gscupgrade
- Users with “Can Add and Edit” or “Can Add, Edit and Delete” permission must install the extension for instant sync.
- The Admin can install the extension for all the users! To learn how go to: http://bit.ly/syncboosterlearn
Latest reviews
Shared Contacts for Gmail has allowed me to synchronise all my contacts with my whole management team. No more lost emails or phone number. Anyone in my team can update details as required and it has significantly increased my whole teams productivity.
This chrome extension totally improved the synchronization between my shared contacts, I don't have to wait for updates anymore!