Founder Profile
Thor Fridriksson
Founder
QuizUp
Thor Fridriksson is the founder of QuizUp, a viral trivia app that grew to millions of users but struggled with monetization.
At A Glance
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Company Overview
QuizUp was a mobile trivia app that allowed users to compete in real-time multiplayer quiz matches across over 1,200 topics. The platform gained massive traction through social features, viral sharing, and community-driven content. However, its reliance on native advertising and lack of strong monetization strategies limited its ability to generate sustainable revenue. Despite reaching tens of millions of users and being acquired by Glu Mobile, QuizUp was eventually shut down due to profitability challenges.
Full Bio
Thor Fridriksson is an Icelandic entrepreneur and founder of Plain Vanilla Games, the company behind QuizUp.
He launched QuizUp in 2013, turning it into one of the fastest-growing mobile trivia apps globally, with millions of users joining within months.
Despite its massive popularity, the company faced challenges in monetization, leading to its acquisition by Glu Mobile and eventual shutdown.
Thor is known for building one of the most engaging social trivia platforms of its time and for the lessons his journey offers on growth, product-market fit, and sustainable business models.
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