Notability has been one of the top iOS productivity apps since 2011 and for the first time ever it’s available as a free download. As a pricing comparison, it has previously sold for $2.99-$4.99. Notability is “a powerful note-taker on iPad and iPhone: sketch ideas, annotate documents, sign contracts, complete worksheets, keep a journal, record a lecture, jot travel notes, or teach a class.”

It has garnered a 4.5 out of 5 stars from 10,898 ratings on the App Store since its inception and was dubbed an Editors’ Choice by Apple.