Freedom24 is a stock/ETF/IPO broker. The first 30 days are free of charge. In general, the account does not cost a monthly fee (except you want cheaper stock exchange fees) and you pay $0.02 per traded stock (minimum $2 per trade).
Freedom24 offers an account where you can deposit your money and earn a 3 % annual interest.
It's time to get your Invitation.codes account too 😎