Interakt is a complete alternative to the above mentioned top-services. The best thing is that you don't have to integrate anything with Interakt. It comes fully packed with its own applications for E-mail Marketing, pop-ups, Live-Chat and helpdesk. All its apps work together as one to provide a completely seamless experience to its user.
Interakt VS Mailchimp -- https://interakt.co/mailchimp-alternative
Interakt VS Intercom -- https://interakt.co/intercom-alternative
Interakt VS Zopim -- https://interakt.co/zopim-alternative
Interakt VS Zendesk -- https://interakt.co/zendesk-alternative
Have been using since an year now for E-mails, Live-Chat and Helpdesk and everything works smoothly. It has saved me a lot of time and money by giving everything at one place.
Our users have written 2 comments and reviews about Interakt, and it has gotten 10 likes