Guru is the answer to all of your questions! This app is a portal to Wolfram Alpha, an extremely powerful and extensive knowledge database. Use it to help with your physics homework, plot complex graphs, and discover facts about history and pop culture. You can even tune your guitar with this app! The possibilities are endless. Unlike other Wolfram Alpha client apps, this app uses an entirely native user interface for a quick and responsive experience. This app also tightly integrates with Cortana, allowing you to ask questions with your voice.