Chemistry: it reacts!
Free Chemistry Apps for Your Phone
The following are free apps for your iPhone/iPod/iPad. Find more apps by searching "Chemistry" in the iTunes App Store. You can also search "Chemistry" in the Android App Store; there are many choices!
ACS Mobile
Chemistry By Design: Learning by Using the Graphical
Language of Organic chemistry
Chemistry Formula Practice Lite
Elements - Periodic Table Element Quiz
iFormulas
Organic Chemistry Essentials
Quick Periodic Table of the Elements
ReactionFlash