Hello, one option for small online investment is the Robinhood app. The app was developed by a company of the same name founded by Beihu Bhatt. Robinhood is a free investment and stock trading app that allows users to invest in stocks, ETFs, cryptocurrencies and more. Robinhood was first launched on Apple phones and other products (AAPL), and Android versions are now available. By calling robinhood phone number you can find out more information about this company.