Ever popular, Evernote offers real power to professionals in its subscription options. Both the plus and premium plans are available as in-app purchases and boast a number of great features.
Power users may want to invest in Evernote Premium, the more expensive option. At $7.99 a month or $69.99 a year you get a lot of features that are great for the business world. Save emails to Evernote, search Microsoft Office docs, annotate PDFs, and even use notes as presentations.
Bonus: Evernote now integrates with Google Drive.