I am an IT professional and use Webex for my Windows. I have found that Webex is a great application that allows you to chat and share your screen with colleagues, friends and family. It is an all-in-one application that allows you to chat, share your screen, and share your files. One of my favorite features is that it allows you to share an entire desktop or just a single app. I use it to work with my team, collaborate with my friends on projects, and share my screen with my family.

Let's see some applications that are alternatives Webex:

1. Skype for Web

Skype for Web is a great option for the web-enabled business traveler, allowing users to take advantage of their Skype account on any device with a web browser. The user simply inserts their Skype account information and is able to chat and make high-quality voice and video calls. Skype is an instant messaging and video-based chat application for Windows, MacOS, Android, and iOS. Skype allows the user to communicate via text, voice, and video over the internet. The app uses a proprietary blend of peer-to-peer and centralized networking technologies to provide high-quality voice and video communication.

2. Google Hangouts

Google Hangouts is a versatile tool for video and voice chat that allows users to connect with anyone in the world. The user can also send messages, share photos, and videos. Hangouts On Air is a video chat service developed by Google that allows users to broadcast live video and audio via the internet. The service uses Google's proprietary Hangouts platform, which is a cross-platform instant chatting and video calling service. Hangouts On Air is a feature of Google+, which has been discontinued.

3. Viber

Viber is a free voice and video chat app that allows users to message each other and share photos, videos, and audio files. The user can also make voice and video calls to other Viber users.

4. FaceTime

FaceTime is a proprietary video-based chat and instant messaging application, first released in 2010 for Apple devices. It is currently available only on Apple devices, including the iPhone, iPad, and iPod Touch. FaceTime was made as a replacement to the Apple ad hoc video chat and video conference platform that was available only for the iPod Touch and iPhone devices and couldn't be used by Mac users.

5. Slack

Slack is a cloud-based team collaboration and chat service. It allows users to chat in different channels, or private one-on-one conversations, with their co-workers.