Brazilian app unlocks phones with educational questions

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Striking the right balance between work and play is hard enough even for adults. We’ve previously featured two mobile apps which stress that point – Nudge Kick, which blocks timewasting sites until the user has completed enough exercise, and StudyPact, which offers financial reward for students who get their work done. Now, Brazilian telecoms company Vivo have taken similar thinking and applied it to a younger market. Their app, called Unlock Lessons, enables kids to unlock their parents’ cell phone or tablet, on the condition that they correctly answer questions on subjects they’re learning at school. Parents download the app…

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