Snapchat is forever updating, even when we don't see anything wrong with it. Snapchat has 100 million active users daily according to http://expandedramblings.com/index.php/snapchat-statistics/. Snapchat is an app where you can send photos to people that last from 1-10 seconds, as well as post things to your story for all your friends to see. You can also use the chat option which allows you to send messages that you can save.
My favorite part of one of the most recent updates is the "Snapchat Trophies." There are trophies for many things. The trophies are shown as gray locks unless they have been unlocked, then they are shown as an emoji. Some trophies have trophies that are related to them, so they are shown under one until you click on them. After you click on one, it shows the related trophies and what you did to receive the trophy. I personally spend a lot of time on Snapchat, so I have received many trophies.