To celebrate its 75th anniversary, LIFE’s editors have drawn on its extraordinarily rich photo collection to produce the LIFE 75 App, a selection of the very best of LIFE. Offering a unique viewing experience, the LIFE 75 App features more than 200 photos and related magazine covers, along with video and audio clips that tell the story of how LIFE was made. Seventy-five years ago, TIME publisher Henry Luce launched a new weekly magazine that he called "the biggest picture show on earth." The magazine, LIFE, was an instant hit and became the gold standard for photojournalism. LIFE has covered war and celebrity, heroes and villains, nature and society, along…