Capsule is a customer relationship management (CRM) software-as-a-service web application and mobile app developed by Zestia, a privately-held software company that operates globally and was founded in 2009.

[3] In 2011, Capsule launched an integration with G Suite Marketplace.

[4] In 2013, Capsule released Capsule for Mobile on the App Store and Play Store.

[5] In 2018, Capsule released a Teams plan.

The primary functions of the Teams plan are for businesses to assign responsibility for contacts, control access to data, and report on team performance.