Apps set the iPad apart from other tablets, whether you need to work on office tasks, learn something new, make music, watch a movie or become a digital artist. But which apps are worth your cash and time? We\u2019ve tested thousands to come up with our definitive list of the best apps for iPad right now. You'll find them split into categories on the following pages, but first see below for our iPad app of the week. iPad app of the week: NanoStudio 2 ($24.99/\u00a323.99/AU$38.99) NanoStudio 2 is the successor to NanoStudio, an iPhone app that let musicians bash out songs on iPhones before GarageBand for iOS was a twinkle in Apple\u2019s eye. Now less \u2018nano\u2019 (being iPad-only), the follow-up is a remarkably powerful tool for recording, sampling, editing, and mixing. The app was six years in the making \u2013 and it shows. Built-in synth Obsidian is among the best on iOS, and is hugely versatile in the noises it can create. Drum machine Slate adds rhythm, and if that\u2019s not enough, NanoStudio 2 lets you effortlessly incorporate Audio Units like Poison-202 and Minimoog Model D. There is an electronic bent to NanoStudio 2, so it\u2019s not ideally suited to people into more traditional sounds. Otherwise, this usable, feature-rich music production environment is a must-have for iPad musicians.