Sync contacts between Microsoft Outlook and countless other apps

Microsoft Outlook is the most common groupware software to manage calendars, contacts, notes, and emails. It can send and receive emails very well as a service for Windows or macOS as an app for Android and iOS. Microsoft Outlook lets you get everything done efficiently with calendar events popping up where they need to be and quick access to the conversations that matter most in your inbox. The mobile apps make it easy to view your schedule at a glance on any device no matter where you are: on your phone while running errands with friends, from home if you forgot to plug in your phone charger before leaving work, or even solo from an airport gate when boarding a flight out of town!
App is available.

Sync contacts between Microsoft Outlook and other apps like:

AGFEO
AGFEOtel
Android
ansitel
API
Apple iCloud
Apple iOS
Apple iPhone
Apple macOS
Apple OSX
Asterisk
AVM FRITZ!Box
CardDAV
corpoTel
CSV
DATEV
Deutsche Telefon Tk-Anlage CentrexX
Directory for Google Workspace, Cloud Identity and Essentials
DocBee
facilioo
Gigaset
Google Contacts
Google GMail
Google Nexus
Google Pixel
GSuite
HubSpot
IMMOWARE24
INOPLA
KBMpro
Kerio Connect
LDAP
Microsoft 365
Microsoft 365 Shared Mailbox
Microsoft Active Directory
Microsoft Dynamics 365
Microsoft Exchange
Microsoft Exchange Web Services (EWS)
Microsoft Global Address List (GAL)
Microsoft Graph API
Microsoft Office 365
Microsoft Outlook
Microsoft SQL Server
Microsoft Teams
MOCO
Mozilla Thunderbird
MyCRM
MySQL
Nextcloud
NFON
o2 digital phone
ownCloud
Pascom
Personio
PhoneSuite
Pipedrive
Placetel
Plusnet
salesforce
Sipgate
snom
STARFACE
SugarCRM
SWYX
TANSS
UCware
Unify
weclapp
XELION
Yealink
Zendesk
Zoho