I noticed you can buy VOO through Robinhood, but if you purchase through Vanguard you pay a percentage fee annually (something like 0.28%). If I purchase VOO through Robinhood I would still pay the same fee, but through Robinhood, correct?
The fee is deducted from the fund itself automatically, you never have to pay anything.
At least that's how it works over here in Europoor and I assume Amerifat is the same.