What are some alternatives?
Proof - Website conversion rate optimization and visitor monitoring
Fomo - Fomo turns your site into the online equivalent of a busy store
GetSiteControl - Perfect widgets for your website: surveys, email opt-in forms, contact forms, popups, follow, share buttons and live chats - all in one place!
SocialPilot - SocialPilot is an app designed to help businesses and professionals with social media marketing.
ConvertBox - ConvertBox delivers targeted on-site messages based on visitor behaviour.
Offerpop - Offerpop is an engagement marketing platform that helps brands engage & convert consumers while building rich customer profiles to drive ROI