Christian leaders are protesting Apple's decision to remove an app that asked users to sign onto a declaration against gay marriage from its iTunes store.

The Manhattan Declaration app is a mobile version of the manifesto unveiled last year in New York by religious leaders opposed to gay marriage.

The free app included the 4,700 word document, which users were asked to electronically sign, and a four-question survey. One question asked, “Do you support same-sex relationships?” Users who answered “yes” were told that they had replied incorrectly.

The app was deleted from the digital store after more than 7,000 people signed a petition urging Apple to remove it.

In a statement to ABC News, Apple said the app was removed because “it violates our developer guidelines by being offensive to large groups of people.”

The Christian group behind the app has now launched its own protest. As of Thursday afternoon, more than 20,000 people had signed onto the petition asking the company to restore the Manhattan Declaration app.

“The Manhattan Declaration, in a civil, reasoned, and respectful way, promotes the sanctity of every human life, traditional marriage, and religious freedom,” the petition reads.

“That Apple would deem the Manhattan Declaration as 'offensive' is alarming and distressing.”
“Despite the claims of some, the Declaration does not promote hate or homophobia. It is not anti-gay. Rather, it proclaims that all human beings are loved by God and are worthy of respect.”

Supporters of the document include Tony Perkins, president of the Family Research Council (FRC), a group recently labeled a hate group by the Southern Poverty Law Center (SPLC), James Dobson, founder of the anti-gay Christian-based Focus on the Family, and Bishop Harry R. Jackson, Jr., the District of Columbia's most visible opponent of its gay marriage law.