Interest rates for both fixed and variable interest are annualised, which means your balance earns interest every day, gradually reaching the full rate within a year. The best part? You don't have to wait a full year to cash in your earnings; you can withdraw your funds at any time.
On the funds you invest in MMFs with variable interest rates, interest is accrued within the money market fund, contributing to the gradual growth of its Net Asset Value (NAV), a key metric used to gauge the per-share value of the fund.
The rate is calculated based on the last 30-days dynamics. You can always check the rate graphs directly in the Interest Rate Pocket, by tapping on the icon of the fund. By investing in MMFs, you won't receive your accrued interest at regular intervals: to cash out your earnings, sell your MMFs and have the proceeds credited to the Cash with fixed interest section of your Interest Rate Pocket.
Learn more about rates in this article.