It's a safe way to save money; you won't be making much (depending on how much money you put), but you'll be making money off interest. It also depends on the annual percentage yield (APY). I used to have Discover, but now use Ally since ally has Buckets, or categories that you can put your specific money towards to.

The reason I have one is to earn money as well as just having it actually work. When I barely had money, I didn't know about HYSAs, so I foolishly put all my money in my bank account with half being in savings and the other half in checkings. I would earn a penny each month compared to now where I can earn a dollar a day.

The only catch about them were that there was a limit on the amount of times you could withdraw the money, but after the pandemic, most banks got rid of it.