The referral program has expired, but may as well leave my review up:
Informative and well-designed app for no commission trading of stocks, ETF, and options. Can also buy and sell some cryptocurrencies through APEX Crypto but can't exchange or transfer them to your wallet. Provides many investing tools, including three free months of level 2 market data, a multitude of charts and indicators, and access to pre-market and after-hours trading. Also has a paper trading feature and contests, to try out virtual trading with pretend money before putting real cash on the line. However, supported by payment for order flow, your trades may be filled on dark pools instead of the lit exchange.
At this writing, their current promotion is 20 free fractional shares valued $3-3000 w/initial $500 deposit.
It's time to get your Invitation.codes account too 😎