The Mobile App is just a portal to the online version. The Online version is suppose to open on December 4.
https://turbotax.intuit.com/personal-taxes/mobile/
Difference between Online and Mobile App
https://ttlc.intuit.com/community/choosing-a-product/help/what-s-the-difference-between-turbotax-onl...
How to use the Mobile App
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-use-the-mobile-app/00/26828
