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The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange. App Customizing Options and Themes System Default (Android) or System (iOS): Matches the theme to your operating system's current mode.

To do this, long-press on a picture you have sent. Choose the ‘Edit’ button on the top, just like you’d edit a text message once you have sent it. Now, you will get an in-built photo editor where you can add filters, draw or crop images. Alternatively, you can even replace the picture and send another one in its place. Speaking of multiples, Telegram allows you to upload additional profile photos. While the latest photo is the profile picture your contacts will see, they can swipe to see the rest of your pictures. What do you think about Telegram? How is your experience? Let me know your comments below! Premium subscribers are able to download media and files at the fastest possible speed. You can access everything in your unlimited cloud storage as fast as your network can keep up.

Let’s check out what are the main Telegram features that you should be used to simplify the way you’re messaging in 2021. You can take a new photo, upload an existing one, search the web for a new image, or remove your current photo. Telegram offers a few other handy options in chats. You can delete any message by long-pressing it, then hitting the Trash icon that appears. The app lets you delete messages at any time—even messages that the other person sent in a chat. While all Telegram chats are client-server encrypted, default chats are still stored on Telegram's servers. This conveniently allows you to access your messages on multiple devices, but it might raise privacy concerns.

What makes Telegram unique is its focus on privacy, encryption, and an open-source API. There are countless unofficial clients to go along with the official Telegram apps and web interface. It also allows multiple devices to use the same account (verified by SMS), and multiple accounts on the same device. If you are using Telegram on your PC, Laptop, or another device, your secret chat is only visible to your device that you started it.