Yusupov did not directly mention the news on Twitter, but said:
With HQ, we showed the future of television to the world. We didn't get where we hoped it was, but we've expanded the world's imagination for what is possible on our smartphones. Thank you to everyone who helped build this, and thank you for playing.
̵1; Rus (@rus) February 14, 2020
He started HQ Trivia 2017 with Colin Kroll, the co-founder of Vine. The app was great in post-launch popularity, often attracting over a million players per livestream cell phone game, perhaps because it promised a chance to win real cash prizes.
Then, in 2018, Kroll died of an obvious overdose. A few months later, the original presenter and "quiz daddy" Scott Rogowsky went to a sports streaming network. The app also attracted fraudsters who made it difficult for legitimate players to win money and had to compete with a number of copycats, including Facebooks. Confetti, the social giant's take on a livestream game show, lasted only a year and showed how quickly the format's popularity has waned since HQ Trivia was launched.