Robinhood - Free stock trading service.
Scout Finance - Free finance app that's like having a Bloomberg in your pocket. Download:
Naga - Join our stock & crypto trading social network with over 1 million users. Copy other traders fully automatically with a free account and over 1,000 tradable assets.
Cappio - Stock research that isn't overwhelming
GatsbyJS - Blazing-fast static site generator for React
Ticker Nerd - Analysing hot stocks before the hype train arrives