Optimizely - A/B testing you'll actually use.
SuperSend.io - Automate Cold Outreach Across Email, Linkedin and Twitter.
VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
nnn - Fast and resource-sensitive file manager for the terminal
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Ortto - Journeys made simple. Your customer data, messaging and analytics working together.