If you don’t want messages in your secret chats to hang around forever, Telegram lets you set self-destruct timers to permanently remove them. After a message is received, it remains in the chat for a predetermined period — you can choose times between one second and one week – before disappearing. This is a handy feature for users who want to save disk space. To access it, go to the “Settings”, “Data and Storage”, and then tap “Storage Usage”. You will find four options: keep media on your device for three days, one week, one month, or forever. Go to Settings > Chat Settings to create your own theme.
Polls However, Telegram only uses this encryption in calls and in its “secret chats” feature, not in regular chats. Those are only encrypted client to server. Meanwhile, WhatsApp, the supposedly less secure service, has used end-to-end encryption in all messages, calls, and video calls since 2016. App Customizing Options and Themes Do you enjoy using both light and dark modes? Telegram has an auto-night feature so the app doesn't blind you at night.
Finally, Telegram has brought a list view for search results in chronological order. Earlier, finding something by incessantly tapping on “next” was a tiring exercise. Now, you can just search for the term and tap on the “search bar” at the bottom to find all the search results in the list view. Perhaps the most important and the best feature of the Telegram app is its security. It is based on the MTProto protocol that is built upon time-tested algorithms. It enables high-speed, reliable message delivery on weak connections. If you’re using Telegram with the calls, secret chats feature, which provides end-to-end encryption for your messages, You can also be locking down the app itself with a passcode, PIN, or password automatically. Improved Login Flow
By subscribing to Telegram Premium, users unlock doubled limits, 4 GB file uploads, faster downloads, exclusive stickers and reactions, improved chat management – and a whole lot more. The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange.
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