Telegram is a secure messaging and audio calling cloud-based app that allows you to send messages, photos, videos, and files of any type to your contacts for free. It is designed to be private, secure, and encrypted, allowing you to have ‘secret chats’ and for the messages you send or receive to ‘self-destruct’ so they can no longer be seen by the sender or the recipient. Telegram also allows you to create groups for up to 200,000 people or channels for broadcasting to unlimited contacts or audiences.

Telegram is known for its end-to-end encryption, to the point that many specialists recommend it when talking about sensitive topics. It also offers two-step verification to make sure it’s you logging into your account. Telegram is very rigid with its security, so much that you can request two-step verification to make sure it’s you logging into your account. It also allows you to log in with other devices you’ve opened your account on, so you can open multiple sessions on the same account.

Telegram is also known for its speed, cross-platform integration, and global availability. It is the fastest messaging app on the market, connecting people via a unique, distributed network of data centers around the globe. You can access your messages from all your phones, tablets, and computers at once, and Telegram apps are standalone, so you don’t need to keep your phone connected.

Telegram comes with some customization options absent from many of its competitors where you can choose the dominant app color, how the app opens links, whether or not the UI shows animations, and more. It also has chatbot integration where you can make use of bots to improve the experience. You can even create your own themes, bots, and full apps using the Telegram API. Telegram has powerful photo and video editing tools, animated stickers and emoji, fully customizable themes to change the appearance of your app, and an open sticker/GIF platform to cater to all your expressive needs.

In summary, Telegram is used for secure messaging and audio calling, sending messages, photos, videos, and files of any type to your contacts for free, creating groups and channels, and customization options. It is known for its end-to-end encryption, speed, cross-platform integration, and global availability.