Investment apps have democratized finance. Robinhood pioneered commission-free trading and still has millions of users despite controversies. eToro combines social trading with copy investing, letting beginners follow expert portfolios. Trading212 offers commission-free stocks and ETFs with a clean interface popular in Europe. Revolut has expanded into investing with fractional shares and crypto. Coinbase remains the most trusted crypto exchange for beginners. Interactive Brokers is the choice of serious investors who want access to global markets. Which investing app is actually the best in 2026?