Learning App Gizmo Hits 13M Users, Raises $22M

Students are struggling more than ever, but one app is proving that learning doesn't have to feel like homework.

Gizmo, an AI-powered study platform launched in 2021, just hit 13 million users across 120 countries. That's a massive jump from the 300,000 students using it just two years ago. The app transforms class notes into interactive quizzes, but the secret sauce isn't the technology. It's the game mechanics that keep students hooked.

The platform works like a mobile game your friends might challenge you to beat. Students earn streaks for daily study sessions, climb leaderboards against classmates, and lose "lives" when they answer incorrectly. Instead of doom-scrolling TikTok, teens are actually choosing to review their biology notes.

The timing couldn't be better. Academic performance in America just hit historic lows according to the 2025 National Assessment of Educational Progress. Teachers blame endless screen time and shrinking attention spans. But Gizmo founder Petros Christodoulou sees an opportunity where others see a crisis.

"We're meeting students where they already are," Christodoulou explains. The app doesn't fight against phones and short videos. It embraces that behavior and redirects it toward something productive.

Investors are betting big on this approach. Gizmo just secured $22 million in Series A funding led by Shine Capital, with backing from Ada Ventures, Seek Investments, GSV, and NFX. The money will grow the team from seven employees to around 30, focusing on engineers and AI specialists. The company also plans a major push into U.S. colleges.

Gizmo isn't alone in trying to make studying addictive. Competitors like Quizlet, Anki, and newer apps like Yuno and Knowt are all chasing the same goal. But Gizmo's growth stands out. While Yuno has 1 million downloads and Knowt boasts 7 million users, Gizmo has nearly doubled Knowt's reach in less time.

The platform proves something important about Gen Z learners. They're not lazy or incapable. They just need education that speaks their language. When studying feels rewarding instead of punishing, millions of students will choose it over mindless entertainment.

The Ripple Effect

This shift could reshape how an entire generation learns. If 13 million students are already choosing to study voluntarily through gamification, imagine the impact when that number reaches 50 million or 100 million. Teachers won't need to fight against technology anymore. They can harness the same dopamine loops that make social media addictive and point them toward algebra, history, and chemistry.

The bigger win isn't just better test scores. It's showing young people that learning can genuinely be fun, that growth doesn't require suffering, and that their phones can be tools for building knowledge instead of just killing time.

Making education feel like play might be exactly what struggling students needed all along.