Which religious text became the first to sell over 1 million digital copies on a single retail platform?

Religious publishing has undergone massive transformation in the digital era. Traditional religious texts that were once available primarily in print form are now accessible through various digital platforms and innovative product formats. This poll explores how religious organizations have adapted their most sacred products to the modern retail landscape and changed their product strategies to reach believers in the digital age.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The NIV Bible (YouVersion app)
The Quran (Quran Explorer)
The Book of Mormon (LDS Library app)
The Bhagavad Gita (Gita Press digital edition)