These 10 work apps have gone bonkers in the last few months

Smartsheet is an online project management tool that uses the familiar "spreadsheet" format.

New Relic is an application performance monitoring tool that developers and IT departments can use to see how the Web apps they built are being used.

Amazon Web Services is a very popular cloud computing service that lets a company hosts their own cloud apps, rent servers and storage to run their bought software, or rent just about every enterprise app available.

Adobe Creative is the cloud suite version of Adobe's popular apps Photoshop, Illustrator and InDesign.

Employees want to store their documents online and share them with others that way. Dropbox is increasingly their go-to cloud storage for file sharing, syncing and collaboration.

Concur is a travel and expense report service that makes it easier to deal with the dreaded task of expense reports. Financial software giant SAP spent $8.3 billion to buy Concur in 2014.

SurveyMonkey lets companies easily run surveys whether they are for marketing or employee satisfaction, etc. It's also increasingly offering data analysis tools that let enterprises compare their survey results with the average responses.

SurveyMonkey was also the company of Dave Goldberg, Facebook COO Sheryl Sandberg's husband, before his tragic death in May.

PagerDuty helps automate the tasks of contacting IT professionals during an emergency when things break.

Slack is a chat app that lets work groups eliminate email and instant messages and collaborate via Slack instead. Its simple design that has just-enough features but not too many has made it one of the fastest growing work apps ever.