HN in particular is a total pain on an iPhone. Even though the design adjusts to the width, the width that Safari chooses is much too small for the text to be

HN in particular is a total pain on an iPhone. Even though the design adjusts to the width, the width that Safari chooses is much too small for the text to be very legible. It's probably like 3 pt or something which is technically readable on the retina screen but not very comfortable. And zooming is pretty worthless when the lines are long and you constantly have to pan around. PG seems to have no desire to make it work better, so that's why these apps exist.