The Elements ★★★★★ ($9.99/ App Store) for the iPhone and iPad is an interactive periodic table app. Sounds boring but once you actually use the app, you will realize how interesting the elements are even if you never cared for science. Having a massive download size of 1.21 GB, this app contains a significant amount of detail and movable element images in satisfying HD. If you can spare the space in your iPhone or iPad and have the slightest interest in science, The Elements by Theodore Gray is well worth the cost.
