Robinhood - Free stock trading service.
Ticker Nerd - Analysing hot stocks before the hype train arrives
Alpaca Fractional Trading API - Commission-free API to trade & invest for as little as $1
Scout Finance - Free finance app that's like having a Bloomberg in your pocket. Download:
Stonksfolio - Gain insight into the performance of stock & ETF investments
wallstreettexts - Realtime alerts on r/wallstreetbets