Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
Simple Poll - The easiest way to create polls in Slack
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
GitHub Polls - Polls for GitHub issues and readme
MailClark - The Slack bot for external communications
Curious Polls - Answer a question once a day for the chance to win £100/$100