mTracker - Here at MotionVFX, we try to make your lives easier.

Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.

Mailtrack.io - The best email tracking solution I've found. Free

Saleshandy - Saleshandy is a cold email outreach platform that enables marketing and sales teams to scale their email outreach operations seamlessly.

Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.

Mailbutler - Mailbutler adds lacking functionality to email clients and increases your productivity