Robinhood started as a free stock trading platform and has expanded to include support for options and other investments, including cryptocurrencies such as Bitcoin.
Robinhood is both a wallet and an exchange like Coinbase, so everything is in one place. However, you can’t currently transfer coins to and from Robinhood with another wallet.
Robinhood is a mobile-first platform, but has a desktop version for many of its stock trading customers.
And what really sets Robinhood apart is the cost: free. There are no commissions when buying or selling Bitcoin, just like stocks on the platform.
NOTE: Robinhood ia available for US citizens. Some may argue it is less secure for reasons I already discussed, but if it is secure enough for your stocks, it is most likely secure enough for your coins