XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.