CB Exchange Server Sync is described as 'enables live, secure synchronization of data among multiple Exchange servers and accounts. The synchronization can be one-way, or bi-directional. Simply choose 2 or more accounts you want to synchronize, rest is done for you' and is an app in the Office & Productivity category. There are six alternatives to CB Exchange Server Sync for a variety of platforms, including Windows, Android, iPhone, Android Tablet and Windows Phone. The best alternative is Outlook Google Calendar Sync, which is both free and Open Source. Other great apps like CB Exchange Server Sync are AkrutoSync (Paid), Outlook4Gmail (Freemium), gSyncit (Paid) and Calendar Sync + (Free, Open Source).
This utility synchronizes Outlook calendar and task list entries to a Google calendar, vice versa, and both ways. Create profiles to sync multiple calendars. Modify sync frequency, direction, and filters. Outlook 2007 to 2016 are supported.