SHAREit - SHAREit allows you to transfer files and data from your phone to another device without having to rely on WiFi or a data plan.
Pushbullet - Pushbullet - Your devices working better together
ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Send Anywhere - Send whatever you want, wherever you want
Gotify - a simple self-hosted server for sending and receiving messages