ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
App Cloner - Clone your Android apps so you can use multiple logins.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Dual Space - It is a first application that is compatible with WhatsApp completely.
LightShot - The fastest way to take a customizable screenshot.
island - a free and opensource alternative to parellel space