Must-have iPad apps:

• Illustrator for iPad is Adobe's sole dedicated vector graphics app for Apple's tablet device. Some people thought Photoshop for iPad lacked too many capabilities to be genuinely useful when it originally came out.
• For many professional photographers today, Adobe Lightroom is the go-to digital photo workflow and editing solution.
• Duolingo is unquestionably the way to go if you want to learn or practise a language on your iPad.
• Flipboard gives iPad users a completely new way to get news from the web; its magazine-style layouts and stunning use of pictures and whitespace turn RSS feeds into attractive, easy-to-read pages.
• It's easy for a company to become the face of its industry and then sit on its laurels, yet Comixology, the leading digital comic book delivery service, never stops evolving.
• Crackle, Sony's streaming video network, allows viewers to watch free, ad-supported Hollywood television shows and unedited movies from Columbia Pictures, Screen Gems, Sony Pictures Classics, and TriStar Pictures, as well as unique material.

Read More: What are the best free apps for the iPad?