Robinhood: Trade without commissions. Users can trade stocks, ETFs, options, and cryptocurrencies commission-free with Robinhood, an app that offers commission-free stock trading. Robinhood makes it simple for novices to brummy linkegin investing in the stock market and create a diversified portfolio with its user-friendly interface and educational materials. By inviting friends to the platform, users can also receive free stocks, offering yet another way to make passive income. Advantages of Investing Apps for Mobile. People can invest in the stock market more easily and conveniently with Acorns and Robinhood, which helps them take charge of their financial future.