SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Robinhood - Free stock trading service.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Bux - Casual stock trading - thumb swipes only
SEOquake - SEOquake provides a browser extension to conduct on-page SEO audit.
Contora - Alternative data on the companies activity on the web for retail traders