Wunderlist is a cloud-based to-do list management app.

Pushline is an app for Android to PC/Mac Notifications' Mirroring and Phone control.

ScaleDrone is a real-time messaging service and platform.

KakaoTalk (Korean: 카카오톡), or sometimes KaTalk, is a free mobile instant messaging application for smartphones with free text and free call features.

Join allows you to easily do stuff remotely on your Android and PC devices like SMS, notifications, clipboard, and much more.