Cesjo app for iPhone and iPad

Cesjo is an educational application that contains educational content consisting of activities and exercises and fun questions for students for all stages,
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Educational content within the app is created by students teachers in his school,
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The student enters this application by typing his username and password which he
obtained through his school,
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The app is completely safe for students of any inappropriate content,
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The goal of this app is to integrate education with fun and play, and to encouraging students to make positive use of smartphones .