If one were to list the most popular crazes of the 21st century, chances are social media would be a contender for first place.

More than 3 billion people around the world use social media, according to a report from We Are Social and Hootsuite.

With this popularity, it seems likely each platform would bring new features to appeal to a wider audience.

Facebook users are familiar with using the Like button, a common staple of the site. In February 2016, their reaction options increased by five, with the worldwide release of the Love, Haha, Wow, Sad and Angry Reactions.

For the last two years, Snapchat has added multiple selfie lenses, which allow users to add unique designs to every selfie they take.

While some updates are seen as fun new features, others, such as Twitter increasing its tweet word count earlier this year, have received mixed reviews. Some people also discuss the rivalry between different platforms in trying to win over users by creating features similar to each other.

Nevertheless, social media is here to stay, and, even though every new feature does not receive universal praise, there is no denying the platforms are always finding new ways to become more unique.