Ignore if you have the big-boy iPad.
I just assumed the mini wouldn't work well displaying two FL apps. So, I (logically) didn't check. I was wrong. Works great:

On the left, a Noet, on the right a Logos app. And easy too.
Start with your preferred FL app. Then go to ios Settings > General > Multitasking and Dock > Allow Multiple Apps (set to yes). Then see the instructions right below the switch.