There is no account setup, so your currency and wallet are just for you. Exodus is a software wallet like Electrum, but much more beautiful and intuitive to use. What is the blockchain? For example, you might refer a friend to a service and then you both get a discount, accrue rewards points or get a BTC or fiat currency bonus. Some may argue it is less secure for reasons we already discussed, but if it is secure enough for your stocks, it is most likely secure enough for your coins. Best for Free Buying and Selling: Robinhood. When you can get discounts or free money, it can be worth going out of your way to sign up for a service through an affiliate link instead of signing up directly.