It will be available in July, meaning iPads could start appearing on altars in the next few weeks, AP reports.
Fr Padrini, a consultant with the Pontifical Council for Social Communications, already has an iPhone app called the iBreviary, which contains the book of daily prayers used by priests.
To date, 200,000 people have downloaded it.
The free missal app will be available in July in English, French, Spanish, Italian and Latin.
Fr Padrini said the apps were his idea and launched with his money, and are not official Vatican initiatives.
The Vatican has praised Padrini’s work as a novel form of evangelization.
Fr Padrini, 36, said he expected priests who frequently travel would use the iPad app. He recently had to celebrate Mass in a small parish with a small, aged missal.
“If I had had my iPad with me, it would’ve been better than this old, tiny book,” he said.
http://ibreviary.com/SIC: CTHAS