We’ve reached a point where social media apps have started to employ similar features in hopes of keeping its user base or attracting more people into its platform. The latest example is another Facebook-owned company copying Snapchat. WhatsApp released an update for its Android beta app that introduces stickers and the ability to doodle on messages.
Aside from that the app gets pseudo-flash for taking night-time selfies and emojis will start to appear larger in chats when you don’t include text with it. If you use Facebook Messenger, that messaging app has the same feature (re: the bigger emojis).
Source: The Next Web