The free app AR Puzzle works on the iOS platform and is available for the iPhone or iPad versions 2 and 3. The audio in the AR Puzzle is available in six languages: English, German, French, Italian, Spanish and Dutch. Finished puzzle size: 27" x 20". Ravensburger Premium Puzzle with Softclick-Technology. Exclusively developed, extra-thick cardboard combined with fine, linen-structured paper creates a glare-free puzzle image for a quality you can feel.