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While you can send uncompressed media in other messaging apps, you have to convert it in another format like EXE or PDF. Telegram, however, allows you to send uncompressed video and images directly (without converting them into another format). It saves you a lot of trouble. Improved Chat Previews on Android Clear Telegram Cache and Local Database

Telegram Bots Stop Being Added to Random Groups Telegram allows you to classify all your chats into various folders. This lets you deal with a group of chats at a time and avoid others when they are not important. For instance, you could set a group to include all chats from your work colleagues and another to manage your personal social circle. Prioritize Downloads on Android

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. To mute a chat in Telegram, head over to the chat in question. Next, tap the name at the top and then hit the mute button. Take Control of Telegram Privacy and Security Join Requests for Public Groups

Custom Theme Telegram App Customizing Options and Themes