Why it wouldn't be a saving account? I don't understand.

Which platform offers real saving accounts according to you?
You're wrong mate, Freebitcoin is the main saving account platform for many people, that's why so many users bought FUN tokens.
Unlike many shady custodial platforms we know what is its business model and from where the money comes from.
About savings, I meant the likes of Celsius Network and Nexo as they are financial institutions with insurance policies.
I didn't say that Freebitcoin is
NOT a savings account, but rather the branding itself is known more as a faucet and a casino.
Freebitco.in is not a Cryptocurrency lending plarform, like the Celsius Network and also not just a faucet and a Casino. You can earn just over 4% per year on your Freebitco.in balance and the interest is paid out to you on a daily basis. (reducing the risk, with every payment that are made, because you are getting a small potion of your investment back every day and it is interest on interest.. because your balance is also growing with every payment that are made.)
In a lot of countries, you will not get 4% interest on your fixed deposits or other investments and it will also not be paid back on a daily basis.
