Microsoft removed several apps that it built based on repackaged mobile websites from its Windows Phone Store, reports The Verge, as it emerged they had been created without agreement from the content producers.

Airline Southwest, online retailer Cars.com and Atari appear to have been unaware that web apps were created using their content, and the titles have now been removed. It is unclear whether the apps will return to the WP Store.

A representative from Southwest told Neowin the company had been in communication with Microsoft but had not approved the app featuring its content. Microsoft removed the offering when Southwest pointed out discussions were still at an early stage.

The Windows Phone maker told The Verge it did not “anticipate many objections” to its policy of creating “pinnable Web Apps” based on existing websites. It added that it would deal with any requests to remove such apps quickly.

The company added that these pinnable Web Apps were partly created to encourage content makers to provide their own native app for Windows Phone.

The relative lack of big name apps has been cited as holding back the progress of Windows Phone compared to iOS and Android.

Bryan Biniak, VP and general manager of app development at Nokia, said in July that there are “major gaps” in the apps catalogue and “select applications that need to be there,” if users are going to be persuaded to switch to Windows Phone.

However, this appears to be changing with the recent addition of some of the most popular apps on Android and iOS, such as Instagram, Twitter’s Vine video app and social magazine title Flipboard.