New app is suitable for mobile phones, tablets and other electronic devices and is simple to use for active mobile phone users.

“In order to efficaciously offer her contribution to culture, evangelisation has to include all means of communication" - head of the Pontifical Council for the Laity.

Enclosed nuns see internet as a gift from God.

"The fundamental challenge is not a technological one ... but of bringing people to Christ."

Book of prayers based on hugely popular internet site.

Call for protections similar to those proposed by UK Government.