Pushbullet - Pushbullet - Your devices working better together
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
AirMore - AirMore is a cross-platform toolset that can help you manage any Android device wirelessly.
Kopy - Kopy is the best way to copy/paste your text across your devices.
Gotify - a simple self-hosted server for sending and receiving messages
push4site.com - Push4site.com service instant browser push notifications.