The fashion and beauty industry is fast-moving, and apps are a good way to keep track of developments, because app content lead time can be significantly shorter than for print magazines. This week’s All Things Appy takes a look at the must-have apps in this genre for the Android platform, including apps to buy the gear, track trends, social network with like-minded fashionistas, and put it all together with make-up tips. Free returns is one of the killer features in Zappos’ app, and the reason it’s No. 1 on our list. 
