It’s hard to find a great set of iPad apps that you can rely on as a designer amidst the constantly growing App Store, and most articles are filled with irrelevant apps — like social media clients — and apps with duplicate functionality, like three vector apps that all do the same things. In this article, I want to help you narrow it down to just ten insanely useful apps that each fill a specific function in the list, and that will be useful for any web designer. You might have found alternatives that suit your tastes, but for the designer with a new iPad, this should be a great starting point. Adobe Ideas Adobe Ideas is a sketching app for the iPad that allows you to get ideas down while out and about for later reference.
DesignFestival: 10 Essential iPad Apps for Web Designers