Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Whaller - Create your own free and unlimited private social networks.

Newton Mail - Newton is a fully featured mail client available for Android, iOS, macOS and Windows.

hub - The Hub is a versatile intranet portal and collaboration solution that boosts employee engagement and productivity in a digital workplace.

myMail - myMail is the smart email app for managing all your accounts on iOS and Android.

Hallo App - A private social network for your friends