Adobe Edge Inspect An important step (near the end of designing a site) is to make sure the thing works. This software app lets you tether connected devices and test websites, for free.

Penultimate Draw and design site wire-frames with this productivity app. Brainstorming to figure out the aesthetic appeal of a site's design has never been easier.

Dropbox This is a wonderful service for storing all sorts of files, particularly mock-ups, images, and specs.

Textastic Code Editor Quality, versatile code editors are hard to come by on the App Store. The newest update added JavaScript code completion, too! At $10, this is a steal.

TED Inspiration is FREE with this official iOS Universal app based on TED Talks (technology, entertainment, design). It's always important to know what technology breakthroughs are being unveiled to the general public. And hey, sometimes you need to take a break from coding and mock-ups to learn something new.