Google has come under fire for not removing an app promoting gay conversion therapy from its app store.

The Living Hope Ministries app was made by a US-based Christian group, and claims to help "sexually broken" people through prayer.

One article on the app suggests users find a counsellor who has a "biblical understanding that homosexuality is changeable through the power of Jesus Christ".

In another section targeted at young adults, the app contains a modue on "recovering" from same-sex attractions.

A screenshot taken from the app

Google has been criticsed by LGBT campaigners for not removing the app from its Play store, with Apple, Microsoft and Amazon already taking the app off their respective digital stores.

A petition to remove the app, dubbed as 'pray away the gay', has already been signed by more than 38,000 people.

"The views contained in this app have the potential to cause huge damage to LGBT people who might come across it," said Laura Russell, head of policy at LGBT charity Stonewall.

"Any form of 'therapy' that attempts to change someone's sexual orientation or gender identity is unethical and wrong.

"These so-called 'therapies' have been condemned by all major UK health organisations as they try to shame a person into denying a core part of who they are, and this can have a seriously harmful impact on their mental health and wellbeing."