Nova Inbox - Personalize emails in seconds, right from your inbox

ConvertFlow - Convert the right people with the right calls-to-action at the right time using a personalized way to guide visitors to become customers.

SendX.io - SendX (https://sendx.io) provides remarketing and retargeting tools for web businesses. You can use popups, landing pages, email, web push notification, automation workflows and FB / Google retargeting to drive more revenue.

OptiMonk - OptiMonk is the most powerful Onsite Retargeting platform, that helps you increase the conversion rate of your site, and get more leads by recovering lost visitors.

Mailblast - Email marketing on a budget using Amazon SES

Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.