The Japanese government is considering legislation to curb the domination of app stores run by Apple and Google.

A report, drawn up by the government's Headquarters for Digital Market Competition, contains a set of proposals.

It says Apple with its IOS and Google's Android monopolize the mobile OS market, and app developers are practically forced to use their systems.

It claims the current situation will further tighten the companies' control and hamper new market entries, possibly leading to higher prices for consumers.

The report says new legislation should be established, while security and privacy protection must also be considered.

One proposal says that when OS makers change rules, they should be required to disclose details and reasons in advance.

The proposed legislation would also ban OS makers from forcing app developers to use their systems. They would also be barred from levying unreasonable fees when the developers sell their products to users and charge for content in the apps.

The report highlights the need for measures to prevent major IT firms from displaying their services over those of rivals in search-engine results.