Plus, Spiegel said that he felt flattered that Facebook found its products great enough to copy. "If you design something that is so simple and so elegant, that the only thing other people can do is copy it exactly... that as a designer is really is the most fantastic thing in the world," he said.

"Snapchat is not just a bunch of features," said Spiegel, explaining that the company's product is more than just Stories. "It has an underlying philosophy that really runs counter to traditional social media." Instead, Spiegel says Snapchat is more of a communication platform among friends. "[People] realize that competing with their friends for Likes and attention is kind of unpleasant and really not that great," he said, adding that Facebook's DNA is more about competitiveness than togetherness. "The DNA of their company is all about having people compete with each other online for attention."

"Our values are hard to copy," Spiegel added.

That said, it's clear that Snapchat is struggling under the might of Facebook. Instagram's Stories is hugely popular, with over 300 million users as of last November, and WhatsApp's Status has around 450 million users as of a month ago.

As an addendum, Facebook's Chief Security Officer Alex Stamos took to Twitter to respond to Spiegel's claims that its data protection practices were better than Facebook's. He said: "Snapchat's implicit promise that photos really disappear combined with poor API security has lead to serious mass leaks of revenge porn. So no, I don't think copying Snapchat would be a smart move."