Buying an expensive, bulky calculator is a thing of the past! Students can finally use their phones on a test with GraphLock, the unique app with a lockdown mode.
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GraphLock is an application that will turn your cell phone, tablet, or computer into a fully functioning scientific and graphing calculator. The calculator is simple to use, yet powerful and has a one of a kind Lockdown Mode making it ideal for use in the classroom and on exams.

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