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System Default (Android) or System (iOS): Matches the theme to your operating system's current mode. Digital Stickers allow you to express yourself better and in a more fun way. Since they are bigger, more detailed, and frequency animated, they make up for the expressiveness and gesture that can get lost in text conversations. Telegram’s core functionality is the same as most other messaging apps: You can message other Telegram users, create group conversations, call contacts, make video calls, and send files and stickers. However, there are a few specific features that make it work differently from other chat apps.

If you prefer keeping the sensitive content of your chats limited to yourself and avoiding it from being intercepted by a hacker or the authorities in your country or region, this Telegram trick is for you. While normal chats in Telegram are user-to-server encrypted and cannot be read unless someone breaches Telegram’s servers, Secret Chats take it to a new level by providing user-to-user encryption. These chats are meant to be short-lived and not stored on Telegram’s servers. You can use this to, for example, keep your personal and professional lives separate on Telegram without having to use another messenger app. Quiz Mode: They have one correct answer and can power anything from public service exams to trivia games. The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange.

For power users, scheduling is a great way to achieve many tasks at a given time. We already use email scheduling a lot, but it’s awesome to see Telegram bringing this feature for messages as well. As you saw above, you can schedule a message just by pressing and holding the “send” button. Here, choose “Schedule message” and pick the date and time. The message will be sent at your preferred time. There's also a hidden menu that appears when you long-press on the Send button. Choose Schedule message to delay sending until a time in the future. You can also tap Send When Online to send the message when the other person is next active on Telegram. A further privacy blunder is that Telegram notifies your contacts when you join it — unless you don’t give it permission to access your contacts. The app doesn’t warn you it’s about to ping your contacts, and that’s a big caveat for those who want to use Telegram to keep a low profile. Request to join a public group

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