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.

buddybuild - Buddybuild ties together continuous integration, continuous delivery and an iterative feedback solution into a single, seamless system. With buddybuild, you can focus on what matters most: creating awesome apps.

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.

Twitter Audience Insights - Loads of info about your followers, their interests, & more

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.

User Interviews + Lookback - Target any audience & record their feedback