I do my setups with my guitar connected to my PC through a Focusrite 2i4. Guitar is tuned to C, but the tuner in Bias FX is a f**ing joke. I've tried a bunch of different 3rd part apps (Pitch Perfect, TB Strobe tuner) and none of them seem able to handle low tunings or input devices other than an actual microphone.

Anyone tried a program they can recommend?