The only thing you can do with an iPad is use the iOS app, that is just a portal to Turbotax Online, the web version that also works from any computer with a web browser. Unfortunately, Turbotax Online is, or will soon be, closed for 2023 tax returns. So if you want to file for 2023 using Turbotax, you will have to find, borrow, or buy a Mac or PC to install the program from the download.
