Telegram for PC is a very fast and secure messaging app, which is very simple and fun to use. The app lets users create groups where up to 200 people can be added, which allows you to stay connected with all your favourite people all at once. Another great feature of this app is that, it allows you to share videos which are 1GB in size, and even share multiple photos as well.
As far as privacy goes, there is a Secret Chats feature where there is end-to-end encryption, so that messages can be read only by the intended recipient. The secret messages can be programmed to self-destruct as well, leaving no records! And all the chats on Telegram for PC stay in a cloud storage, so one can access all chats at all times from any device! Another great thing about the app is that there are no annoying ads!