It is unknown who created the app, but it has been around as far back as August 8, 2016, when Psimon was spotted photobombing a photo posted on the app, taken by a guest attending the Goode World Studios classic movie festival.
Angel O'Day posted a selfie with Garfield Logan in gorilla shape, after he intercepted a man that tried to steal her purse. Over the next two days, the picture accrued 16 million likes. Twelve days later, it had 52.1 million likes and by December 04 it reached 160 million.
There have been several social media sites in DC Comics, treated with little consistency. These include Twitterati, ViewTube, DCU Book and Pixtagraph. "1K Wordsworth" seems to be a reference to the adage "a picture is worth a thousand words", suggesting it is primarily an image sharing site.