An app on Apple's iTunes store from the “ex-gay” group Exodus International has sparked a petition to have it removed.

The online petition is sponsored by Truth Wins Out, a group founded specifically to counter the claims of “ex-gay” ministries, and has attracted more than 125,00 signatures.

Truth Wins Out President Wayne Besen says he's petitioning for the app's removal because Exodus International's message is harmful.

“Exodus' message is hateful and bigoted,” Besen wrote on his group's website. “They claim to offer 'freedom from homosexuality through the power of Jesus Christ' and use scare tactics, misinformation, stereotypes and distortions of LGBT life to recruit clients. They endorse the use of so-called 'reparative therapy' to 'change' the sexual orientation of their clients, despite the fact that this form of 'therapy' has been rejected by every major professional medical organization.”

“But reparative therapy isn't just bad medicine – it's also very damaging to the self-esteem and mental health of its victims.”

Besen also claims the app specifically targets vulnerable gay youth.

“In light of the recent wave of LGBT youth suicides, this tactic is particularly galling as it creates, legitimizes, and fuels the ostracism of LGBT youth by their families.”

On Friday, Besen announced the group's next move: “If Apple continues to bury its head in the sand, we will hold a press conference in front of their offices featuring sexual and spiritual abuse victims of 'ex-gay' programs.” (A Truth Wins Out video urging Apple to dump the “ex-gay” app is embedded in the right panel of this page.)

Last year, Apple removed an anti-gay app after thousands signed onto a similar online petition.