Kontact - Kontact is the integrated Personal Information Manager of KDE.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Kontact - KAddressBook - KAddressBook stores all the personal details of your family, friends and other contacts.
Microsoft Power Automate - Microsoft Power Automate is an automation platform that integrates DPA, RPA, and process mining. It lets you automate your organization at scale using low-code and AI.