Contacts Sync is a tool that synchronizes your contacts between MS-Outlook and Gmail. Works with any Gmail account as well as Google Apps account. Use it to sync Outlook contacts to Android phone, iPhone, Playbook. Contacts Sync offers two types of options to synchronise your contacts: Synchronize from Outlook contacts to Gmail contacts or Sync contacts from Gmail to Outlook contacts. Scheduled sync option to sync contacts. Scheduled Sync option can be configured to sync contacts at regular intervals. Pro version supports full 2-way sync.
All other similar software are not free, whereas Contacts Sync is a freeware. It is very easy to use and user-friendly and scheduled synchronization makes it easy to keep Outlook contacts always in sync with Gmail Contacts.
Users who want to sync Outlook contacts to Gmail, thus makes it easy to mobile phone users to access their outlook contacts through Gmail.