This is a timely topic for me, as I'm prepping for my PPL checkride. Call me belt and suspenders, but I have Foreflight on both an iPad mini2 and an iPhone 6+ connected to a Stratus2. The plane has a GTN650 and I keep a sectional and plotter in the front pocket of my bag. I understand the DPE we're planning to use likes EFB, if you have at least one backup, but I'm also kinda afraid of looking like a gadget dork. Maybe I am a gadget dork? But I want to be thought of as a conscientious pilot with good resource management, not a toy-dependent magenta line follower. I can dead-reckon, fly a VOR heading and I at least understand ADF/NDB (but none of our planes have one).
I'm probably just overthinking the whole thing, yes?