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.

Bloomerang - Bloomerang is a simple donor database and fundraising software solution that helps nonprofits decrease donor attrition and increase 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.

Kindful - Nonprofit donor database + fundraising tools all in one

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.

Classy - Expressive, flexible, and powerful stylesheets for native iOS apps