SEOTrack - Compare website traffic vs SEO changes done at the same time
Maze Templates - A library of pre-made user tests and surveys
Monkey Test It - Primate powered algorithms that scan your site for common bugs and SEO mistakes.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!
BugBug.io - BugBug makes test automation ultra-simple. It allows you to automate testing without coding, ensuring the quality of your web app or website without repetitive manual testing or writing a line of code.