iCloud

Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices.

Freemium Mac OS X Windows iPhone iPad Web

AkrutoSync

AkrutoSync automatically and privately syncs Outlook PC contacts, calendar, tasks and notes direct with any Android, Windows phone, iPhone or iPad. Keeps information out of cloud.

Commercial Windows Android iPhone Android Tablet iPad Windows Phone

Contacts

Contacts, called Address Book before OS X Mountain Lion, is a computerized address book included with Apple Inc.'s macOS.

Commercial Mac OS X iPhone iPad Web

SYNCING.NET

SYNCING.NET offers powerful Data and Outlook synchronization for individuals, professionals and businesses.

Commercial Windows

Kontact - KAddressBook

KAddressBook stores all the personal details of your family, friends and other contacts. Features * Imports and exports to nearly every address book standard ...

Free Open Source Windows Linux

Spanning Sync

Spanning Sync 3 is the one app that syncs both iCal with Google Calendar and Address Book with Google Contacts. It gives you even better control over how your information syncs, and is now up to 10x faster!

Commercial Mac OS X

NuevaSync

NuevaSync provides over-the-air, push synchronization of email, contacts, and calendar entries for Apple iPhone, Windows Mobile, and other mobile devices.

Commercial Web

OLContactSync

OLContactSync allows you to easily synchronize your Outlook contacts with any other Outlook user’s contacts per E-Mail for free. The synchronization works in the...

Free Windows Microsoft Office Outlook