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To lock a chat go to Settings->Privacy and Security->Passcode Lock and enable it. Once you create a passcode and enable it, you will be able to lock and unlock your chats by tapping on the lock icon at the top right of the app. Turn on Secret Chat Send Scheduled and Silent Messages

At the same time, all existing features that users have come to expect and rely on for nearly a decade remain free. Moreover, non-premium users will be able to enjoy some of Premium's benefits: for example, download the extra-large documents and view stickers sent by premium users, as well as tap to increase counters on premium reactions that were already added to a message. To do this, head over to Telegram’s settings by sliding over the hamburger menu from the left of the app. Here, choose ‘Settings’ and then click on ‘Chat Settings’. In this menu, you will see a number of themes and colour options to choose from. Further, you can also change the curve on message boxes and font size. All Telegram users can download these extra-large documents, regardless of whether they are subscribed to Telegram Premium. Telegram Live Locations and proximity alters (Express Photo)

If you're verified on at least two social networks, you can verify your group, channel or bot. This security-focused messaging app allows you to register a unique username so that people can message or add you to groups without necessarily knowing your phone number. This way, you can keep your number private. Cons of switching To enable it, go to “Settings”, “Data and Storage”, and turn off automatic download “when using mobile data” and “when roaming”. You will also see options to turn off autoplay “GIFs” and Videos”.

To upload new profile images, open Settings. On Android, tap on the camera icon at the top-right. On iPhone, tap the Edit button and choose Set New Photo or Video. Unlimited personal cloud storage