You can't ... the downloaded version must be installed on a full computer not a mobile device. If you don't have a computer to use you can get a refund of the unneeded program and then use the ONLINE version when it goes live later this week. https://turbotax.intuit.com/personal-taxes/online/
Go to this TurboTax website to request a refund for the software purchased from TurboTax - https://support.turbotax.intuit.com/forms/refund-request.jsp
