The US Government offers a special savings program called iBonds (not an apple product). Technically they’re referred to as Series I bonds.
These bonds are special. Each citizen can only purchase $10,000 per year. The thing that makes them special is that they have really favorable interest rates that are made up of two components. There’s a fixed component largely controlled by the Fed. Currently this is essential 0% though rates are rising. The second component is tied to inflation. Right now, that component is ~8% for the most recent issuance (there are two issuances per year of these bonds where they recalculate the interest rate). This rate may change if inflation goes up or down.
The bond is special because that 8% is really high compared to other risk free instruments. For example, compare that 8% to what you’re earning on your savings account. Hence why many people have taken interest in iBonds recently.
You can only purchase these instruments directly from the treasury department. Google Treasury Direct. Also there are rules about how long you have to hold them and how much interest you give up if you need to withdraw your money early. Those rules are outlined on Treasury Direct.
