Hi,
When building the project with unity I selected the Simulator SDK so this way I can test the app in xcode without a device. My question is: can I get the .ipa file I need to upload to iTunes with that SDK? or I need to use the device SDK? I do not have an iOS device so it would be better for me if I do not really need to use the device SDK
no you can’t
Xcode uploads the archived distribution build automatically, you don’t manually upload an .ipa; besides, it is built for different cpu/arch, distribution build is in release mode, might have bitcode enabled, … and many other things
I’m not sure whether you can actually submit a build for generic device, but to ensure the application at least runs properly it is highly recommended to test it on an physical device