8 of 8Image
(Credit: Alexander Blach)
Platform: iOS (iPhone, iPad)
Another text app, but this one is designed specifically for coding, and has syntax highlighting for more than 80 languages, including HTML, XML, Object-C, C++, PHP, Perl, and more.
Platform: iOS (iPad)
The late Steve Jobs wasn't a huge fan of the stylus for touchscreen devices, but apps like Scrapnote, which let you draw, paint, mark and highlight documents, are on the rise, and are really ideal with a stylus.