Thirty-five per cent of mobile games don't work

So says GetJar, which puts UK consumer expenditure on faulty games at £29 million.

It's a bold claim, based on replies from just under a thousand of GetJar's UK users about their experiences specific to games they had paid for.

The survey showed only 15 per cent of users found their games always worked.

GetJar claims that insufficient testing is to blame for the high failure rate and says the problem will get bigger "unless developers place greater emphasis on compatibility".

Ilja Laurs, CEO of GetJar, said: "This is an important challenge for the mobile entertainment industry, for developers and for the operators who supply the vast majority of games in the UK."