Now there’s another Facebook app making features that mimic Snapchat.

WhatsApp, the chat application owned by Facebook and used monthly by 1,2bn people, is adding a built-in camera to let people take photos or videos, and send them directly to their contacts or add them to a “status” update — similar to Snapchat’s “stories” feature.

It’s the latest example of a Facebook app building the tools popularised by its younger rival, owned by Snap.

Facebook’s Instagram, for example, now has 150m people using its version of stories, launched in August.

WhatsApp’s version is being released the same week that Snap begins its road show to tout its stock ahead of a March initial public offering. Still, WhatsApp doesn’t see its move as threatening any other social networks.

Snapchat’s way of sending photo and video messages “is a format that is being established and being changed and being improved upon by a lot of people in the space”, said Randall Sarafa, a product manager for WhatsApp, in an interview.

“We’re bringing this format into WhatsApp and giving it a bit of the WhatsApp flavour that we know, which touches on reliability, security and personal sharing.”

In the early days of messaging apps, developers would try different tactics for their designs until the industry settled on what a group message should look like, or what it should look like when a message is received, Sarafa said. Snapchat has just pioneered a format that works well as people receive and send more photo and video.

In WhatsApp, the number of photos sent daily has doubled year over year to 3,3bn, the company said. People send 760m videos and 80m GIFs daily. It was time to update the product to reflect the way people were using it, Sarafa said. WhatsApp actually started as an app for sharing statuses, before evolving into a messaging platform.

WhatsApp’s audience is far larger than Snapchat’s, which reported 158m daily users in its filing with the US Securities and Exchange Commission in advance of the listing. Facebook’s moves to copy Snapchat’s features have already raised concerns after Snapchat reported that user growth slowed in the most recent quarter.