You can't use it on a phone or mobile device. Do you have the 16 digit License Code? You need to install the Desktop program on a full Windows or Mac computer. Did you accidentally start in the Online web version?
Do you have a computer? How to get started with the Desktop program, install and activate it
https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/download-software-turbo...
2024 Turbo Tax Desktop Download System Requirements
Windows 10 or later or Mac OS Ventura 13 or later (newer).
https://turbotax.intuit.com/personal-taxes/cd-download/tta-system-requirements
