It also makes it almost impossible to compete if Apple/Google has a similar product. They get 100 % of their own earnings, you only get 70 %, so need a much muc

It also makes it almost impossible to compete if Apple/Google has a similar product. They get 100 % of their own earnings, you only get 70 %, so need a much much bigger operational margin. And they still make 30 % off you, so if you're equally big they in reality make 130 % and you 70 %, almost the double of you while having the same sales.