Gmelius, Vocus.io, Mixmax, Boomerang Mail, Quickmail, Flow-e, Intelliverse Email Tracker, Klenty, Right Inbox, Rebump, Mailbutler, FollowUpThen, ActiveInbox for Gmail, Bananatag, Followup.cc, Prospect.io, Salesflare, Interseller, SalesHandy, Convertpath.io, Bluetick.io, AutoPitch, Thrive for Email, PersistIQ, MailFred, Autoklose, Datananas, LeadSequence are some alternatives to Yesware.