I checked almost every cheap mobile plan and the price per GB per Day varies 4x

My mobile operator (Circle.life) was acquired by Amaysim and they gave me a new plan. So I was looking at some of the cheapest plans our there without the "welcome bonuses and 28 day plans" bullshit and I found out that the cost per GB per day varies a lot. You can have a look here: https://docs.google.com/spreadsheets/d/1MFmljTiWGyCxNK9YP44qAOyZG4llQHFxm3FJizErPBM/edit?usp=sharing