The interest you get is monthly, but it is calculated annually/yearly. The current interest rate is 10% APR (Annual Percentage Rate). This means that you get $4.30 HBD annually/yearly for having $43 HBD in savings. Of course this does not count the compound interest, nor further HBD deposits into savings.
RE: I received an interest of $1.196 HBD for 2021 November - I currently have nearly $300 HBD in savings (2021.11.29)