DONATION - DONATION works well for churches, charities, and other places of worship.
Bloomerang - Bloomerang is a simple donor database and fundraising software solution that helps nonprofits decrease donor attrition and increase revenue.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Kindful - Nonprofit donor database + fundraising tools all in one
WildApricot - WildApricot is a powerful cloud software to help you automate and simplify membership tasks.
Classy - Expressive, flexible, and powerful stylesheets for native iOS apps