Is swapping of crypto truly free on crypto exchanges? Why does my dollar value reduce after swap?

[King Belieal]

Most of the popular crypto exchanges like BINANCE, Bybit and others claim that swapping from one crypto to the other is free. But I observe that the dollar value of the token always reduce after the swap operation. Is crypto swap on crypto exchanges truly free?

 

[magnus2022]

Honestly, i have equally experienced such scenario where i swap and there is slight difference in my dollar value. Though, the difference is negligible therefore i do ignore it.

 

[Fidelia]

I really don't understand to expand my what happens that the dollar value of the crypto always reduces after the swap.

 

[Suba]

As far as I know, the only free fee is the exchange's admin fee. Even if you swap crypto, you'll be charged a blockchain fee and a spread fee. So, even though we often encounter some major crypto exchanges claiming no swap fees.