Developer's description:gSyncit enables syncing Outlook calendars, contacts, notes, and tasks with your Google, Toodledo, Todoist, Pocket Informant Online, Evernote, Simplenote, Nozbe accounts. It also supports syncing Calendars and Contacts with iCloud, AOL, Yahoo! many other services that support CardDav and CalDav access.
NOTE: 64-bit version requires Outlook 2010/2013/2016 64-bit and not just Windows 64-bit. Otherwise, install the 32-bit version of gSyncit including if using Windows 64-bit. You can confirm the "bit" version of Outlook used on Outlook File / Help or File / Accounts panel.
WHAT'S NEW IN GSYNCIT V5:
Improved Sync Performance: Faster sync with Google and other supported services.
Google Calendar Attachments: Sync attachments between Outlook and Google events.
Google Contact Domain Contact: Sync Google Apps Domain Global Address List with Outlook contacts.
CalDav Keyword Filtering: Filter CalDav events using keyword filtering options.
Informant Online Attendees: Sync attendees between Outlook and Informant Online.
Todoist Sync: Basic task sync with Todoist (requires Todoist premium account).
Maintenance: Maintenance updates and continued support of software.
Use gSyncit to sync Outlook with mobile/table devices or another Outlook installation.
Sync with Google account calendars, contacts, tasks and notes.
Sync with Toodledo, Todoist, Pocket Informant, Evernote, Simplenote, DropBox, and Nozbe
Sync with CalDav and CardDav services including iCloud, AOL, Yahoo, Memotoo and others.
Syncing calendar attachments with Google and CalDav events
Duplicate removal wizard for finding & removing duplicates in Outlook folders.
ONE and TWO WAY syncing of Outlook calendars, contacts, notes and tasks.
Sync Outlook categories with Google calendar event colors.
Sync with multiple Outlook profiles and service accounts (e.g. multiple Google accounts).
Automatically matches entries to avoid duplicate items when syncing.
Customize sync options to control how, when and what you want to sync.
Keyword and Outlook category filters to control the Outlook content you want to sync.
Advanced options to sync Outlook items based on categories.
FEATURES HIGHLIGHTS IN GSYNCIT V5:
GOOGLE EVENT ATTACHMENTS: Sync Google/Outlook event attachments.
GOOGLE DOMAIN CONTACT SYNC: Sync Google Domain contact list to Outlook (including photos).
TODOIST SYNC: Basic sync support between Todoist and Outlook
CALDAV KEYWORD FILTERING: Advanced event keyword filtering for CalDav and Google events.
CALDAV DEFAULTS: Ability to assign default availability/visibility when syncing with CalDav services.
GOOGLE EVENT COLOR SUPPORT: Added ability to sync Google event colors with Outlook categories.
TWO-WAY NOTE SYNC WITH GMAIL: Sync Outlook notes to a Gmail mailbox for two-way note syncing between Outlook and Gmail notes.
GOOGLE ACCOUNT OPEN AUTHENTICATION SUPPORT: Updated all Google syncing operations to use Open Authentication for improved security.
CONTACT DISTRIBUTION LIST SYNC: Sync Outlook distribution lists with Google groups.
ADVANCED KEYWORD FILTERS: Updated keywork filtering to support combinding criteria like starts with, contains, ends with and equals.
TODOIST SYNC: Support for syncing Outlook tasks with Todoist task lists.
CALDAV & CARDDAV SUPPORT: Support syncing with CalDav and CardDav for exchange of calendar, contact and task information with with iCloud, AOL, Fruxx, Yahoo, Memotoo and many other "DAV" enabled services. Also includes support for syncing attachments for calendar events.
MICROSOFT .NET v4.5 COMPATABILITY: Migrated all legacy components to the latest Microsoft .Net v4.5 compliant releases for future compatibility with Windows and .Net updates.
POWER SAVING: Disable syncing when using battery power.