Quizlock – Unlock your phone by solving quizzes

Summary: QuizLock enforces screen time limits by requiring users to solve quizzes to continue using their phone. When the set time expires, a quiz appears; solving it unlocks the device, while failure locks the phone automatically.

What it does

QuizLock sets a usage limit between 10 and 120 minutes, then prompts users with math, pattern, or emoji puzzles at three difficulty levels. It includes parental controls via an admin password and supports seven languages without draining battery.

Who it's for

It is designed for parents seeking a simpler alternative to complex screen time tools like Family Link to manage their children’s phone use.

Why it matters

QuizLock reduces conflicts over phone time by locking the device only after a quiz challenge, combining screen breaks with cognitive exercises.