Trigger Finance - IFTTT for the stock market
Robinhood - Free stock trading service.
Scout Finance - Free finance app that's like having a Bloomberg in your pocket. Download:
TradingView - The best charting tool for crypto and stocks
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
StockTwits for Slack - Fun, real-time stock quotes in Slack