What's OpenPhone

OpenPhone is the modern phone for startups.

It adds a dedicated business phone number to your existing devices to help you communicate easily, no matter where you are. It comes with powerful calling, messaging and a dedicated business address book to help you stay on top of your relationships. Whether it's a direct phone number for your sales representative or a shared line for the support team, OpenPhone enhances the way people communicate at work and brings the phone out of the stone ages.

Founded in 2018, OpenPhone is used by thousands of startups around the world and is backed by Y Combinator, Slow Ventures, and Kindred Ventures.

Special offer

GradSchool members get 20% off your first six months on any of our plans.

How to redeem

To redeem, create an account here and sign up for the free trial. Once you do, respond to the welcome text message you get with GradSchool and the OpenPhone team will apply the deal.

OpenPhone - Modern Business Phone for Startups and Small Businesses

What's included

Point of contact

Reach out to with any questions.