I use Logos both on my iPhone, and my new iPad Pro 13" which also has an Apple Pencil. I wish
1) you could change the font sizes more independently, because if the Hebrew is a good size, the English is too big.
2) Related, Why not implement Apple's pinch gesture to make font size easily and quickly adjustable? At least that way, if independent font size isn't available, it's at least 0 clicks to change size.
3) Better pencil implementation. I have the good one, could easily change highlighters.