By bizn_fun 
Apple maintains that because commission is only charged on the sale of paid apps and on in-app purchases, 85% of apps on the App Store do not pay any commission at all.
And it points to its introduction of a programme for small businesses where the usual 30% rate of commission is halved.
In a statement sent to the BBC, Apple wrote that it strongly disagreed with the ruling, which took a flawed view of the “thriving and competitive app economy”.
The App Store had benefited businesses and consumers across the UK, it said, and had created a dynamic marketplace where developers compete and users could choose from millions of innovative apps.
“This ruling overlooks how the App Store helps developers succeed and gives consumers a safe, trusted place to discover apps and securely make payments,” Apple said.
Adding: “The App Store faces vigorous competition from many other platforms — often with far fewer privacy and security protections”.
Apple said it intended to appeal.