Proprietary Software for Gmail
Yesware
Yesware is an add-on for O365 and Gmail that gives sales professionals everything they need to prospect, schedule meetings and follow up. It allows you strengthen and build new meaningful relationships straight from your inbox. Yesware also provide features like email tracking, campaign prospecting, meeting scheduler, follow-up templates and one-click integrations to popular third-party services like Salesforce, LinkedIn, Zoom, DocSend, and Clari.
Gmelius
Gmelius is a collaboration platform for teams using Gmail. Gmelius empowers your teams to collaborate on email, manage their projects and pipelines, serve your customers, and automate workflows without leaving Gmail and the other apps used daily within your company. Gmelius integrates with third-party software like Slack, Trello, Zoom and Zapier to further improve collaboration among teams.