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