Google's Android platform is struggling to win over app developers who prefer the simplicity of Apple's iOS, it has been reported.

According to a study by mobile software analyst firm Flurry, reported in Business Week, developers are creating roughly one new Android app for every three new iOS app. The ratio was two-to-three this time last year, according to Flurry.

Flurry tracks more than 55,000 developers and measured some 65,000 app projects over the course of the last 12 months, according to the report. The company's figures are backed up by recent reports from Appcelerator that suggest developers are losing interest in Android compared to iOS.

It seems that the major problem the Android platform has is that of fragmentation. Developers quoted in the Business Week report complain of the length of time needed to develop apps for Android because of the variety of screen sizes and devices that an app needs to work with.

With iOS, it is much simpler - there are only two screen sizes to deal with. One developer also says that making iOS apps is more profitable than making apps for Android.

Then there is the problem of distributing the app to the multiple app stores that serve Android - again, not a problem with iOS.