“Viber is a communications app that allows you to talk with staff in groups or one on one through either voice or texting. You can call, send videos or photos, or just relay a simple text message. It works anywhere with internet access, and it uses end-to-end encryption, so chatting is always protected and private. Additionally, we like to use it during big meetings and conferences to replace walkie-talkies.”

—Anita Joshi, Director of Technology, National Investor Relations Institute, Alexandria, Virginia

Price: Free

More info: viber.com