OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.

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

Sleeknote - Set up lead capture forms on your website in minutes. No coding required. Sync your new email leads with your favorite email service provider. Try for free.

Kindful - Nonprofit donor database + fundraising tools all in one

Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.

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