I'm going to compare Faithlife Study Bible to YouVersion's Bible app.
One, as a new user, YouVersion is WAY easier to pick up than Faithlife. I don't understand the split panels thing really. I understand the concept, but I want to be able to hide it. Maybe you can, but it's not very apparent how to go about doing that. Only being able to use the Lexham English Bible for free is just crazy. Navigation is poor. It doesn't follow mainstream app navigation, which adds to the frustration of learning it.
Again, YouVersion, I can pick it up and start reading with no problem. There's tons of versions to choose from for free.
I wish I could have the elegance of YouVersion with signals from Proclaim. It stinks that I can't.
I'm on iOS, so maybe it's different on another platform.