Slik - Blazing fast, keyboard-driven, Apps and Web Apps launcher.
GPS Status & Toolbox - Display your GPS and sensor data: Shows the position, number and signal strength of GPS satellites.
lemlist - Send emails that get replies 💌
VisualGPS - VisualGPSView is a new product that allows you to display graphically the output of your GPS...
AnyMailFinder.com - Find anyone's email address
RTKLIB - An Open Source Program Package for GNSS Positioning