GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
SuperSend.io - Automate Cold Outreach Across Email, Linkedin and Twitter.
Gmail Mail Merge - Send personalized emails with attachments
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
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.