gSyncing is described as 'With gSyncing tool you can sync Google calendar, contacts and tasks with Outlook and other files from your different devices. Great app for Gmail and Outlook synchronization' and is an app in the Backup & Sync category. There are eight alternatives to gSyncing for a variety of platforms, including Windows, Android, iPhone, Android Tablet and iPad. The best alternative is EteSync. It's not free, so if you're looking for a free alternative, you could try Outlook Google Calendar Sync or Outlook4Gmail. Other great apps like gSyncing are AkrutoSync (Paid), gSyncit (Paid), Calendar Sync + (Free, Open Source) and CB Exchange Server Sync (Paid).
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.
CB Exchange Server Sync 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.
A solution for syncing Outlook Calendars, Contacts and Tasks with Apple iPhone, Android phones as well iCloud, Gmail Contacts and Tasks, Google Calendars, Microsoft Exchange, Office 365 Calendar, Contacts & Tasks.