The Catholic Church has neither formally endorsed nor rejected the shroud, but in 1958 Pope Pius XII approved of the image in association with the devotion to the Holy Face of Jesus.
The origins of the shroud and its images are the subject of intense debate among theologians, historians and researchers.
An Android version is also being developed, Zenit reports.
Marc Lallanilla has been a science writer and health editor at and a producer with
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The shroud was damaged in a fire in 1532 in the chapel in Chambery, France.
There are some burn holes and scorched areas down both sides of the linen, caused by contact with molten silver during the fire that burned through it in places while it was folded.
However, what is claimed by some to be the image of a shroud on the Pray Codex has crosses on one side, an interlocking step pyramid pattern on the other, and no image of Jesus.
Critics point out that it may not be a shroud at all, but rather a rectangular tombstone, as seen on other sacred images.
The front and back views of the head nearly meet at the middle of the cloth.
The image of the "Man of the Shroud" has a beard, moustache, and shoulder-length hair parted in the middle.
The Shroud of Turin, an icon of faith and controversy among Christians, is back in the news.