We submit these comments in response to the Competition and Markets Authority’s (CMA) inquiry on the markets for the supply of mobile browsers and cloud gaming in the United Kingdom. This comment will primarily address the supply of mobile browsers in the U.K. The CMA’s study has concluded that Apple and Google’s duopoly on mobile ecosystems means they have a stranglehold over key gateways. The CMA identified that there are many potential interventions which could help unlock competition and protect millions of businesses and people reliant on their services. The CMA is taking action now to tackle the many problems it has identified, and the new pro-competition digital regime expects to have additional powers to oversee these key digital markets.