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You don’t have to start from scratch to make Telegram apps. TDLib (Telegram Database Library) makes it easy to develop feature-rich and secure apps. It takes care of local data storage, network implementation details, and encryption so that you can focus on design and interfaces. The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange. Upload Multiple Profile Pictures to Telegram

Another useful feature is “send without sound”. It is rather self-explanatory: you can message friends freely when you know they are attending an important meeting, studying, or sleeping. Recipients will get a notification as usual, but their device won’t make sound, even if it is in general mode. While you can receive/send files irrespective of their type and size, you can disable automatic media download and auto-play media to save mobile data. This way, you can also avoid downloading unnecessarily large files. Besides these security enhancements, you can set a self-destruct timer of duration varying from one second to one week. Furthermore, you or the other person cannot forward messages that you receive within the Secret Chat and taking screenshots (or screen recordings) is completely blocked. Currently, the Secret Chat is limited to conversations between only two people and Secret Groups are not supported within Telegram. 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.

Secret chats Telegram Pin Messages Everyone (default one: Allow everyone to view your profile. Who are the social leaders from Maharashtra holding up Mahatma Gandhi’s l...Premium

Here you will get the option to share either your current location or your live location. Select the live location option and then select the time limit for which your location will be shared with the person. Now, all you need to do is hit that share button to share your live location. To do this, head over to Telegram settings and choose ‘Folders’. Here you can create as many folders as you want and add both personal chats as well as groups and channels to any of the folders. You can also order the folders you just created, but note that the default ‘All chats’ folder will always be the first one.