TradingView - The best charting tool for crypto and stocks
Public - Group chats.
Stock Rover - Stock Rover lets you find, compare and dive into equity data like never before. Effortlessly screen for stocks, plan trades and analyze portfolio performance.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
wallmine - US stock market today: stock quotes, stock screener, stock charts, insider trading, market news, portfolio tracking, and cryptocurrencies.
Chalk - Chalk is a calculator that tries to do right what others do wrong.