Skype is one of the most popular and easiest-to-use communication tools, connecting people from around the world. The program supports video conferencing, voice calls, and instant messaging. Additionally, you can use the software to send large-sized files up to 300 MB. Skype download lets you purchase additional subscriptions to call mobile phones and landlines. While the program has been a standard for group messaging and online chat, it has faced tough competition from new titles, such as Zoom, Discord, and Microsoft Teams.