Gone! Lite - Drop your stuff off at UPS and we'll sell it for you
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Lugg - It's like Uber for movers
Pushbullet - Pushbullet - Your devices working better together
Accomplice - The “Kayak” for ground transportation and food delivery apps
Gotify - a simple self-hosted server for sending and receiving messages