ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
LightShot - The fastest way to take a customizable screenshot.
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.