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.
SuperSend.io - Automate Cold Outreach Across Email, Linkedin and Twitter.
FollowUpThen - The simplest way to schedule an email reminder
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.
Sweego.io - Send all your notifications (email, SMS, slack, chat…) and make sure that they’re delivered. Create, send and monitor easily with Sweego for developers.