Can you please tell me why doesn't everybody use Freewallet? As I got the point it can work with BTC and ETH. Why so much people using MEW instead? MEW is only for Ethereum as I got.

Is it a question of security?

I also heard about the commission if you send ETH from one MyEtherWallet to another. Is it truth? Because I heard Freewallet doesn't have a commission.

I'm quite new to the wallet stuff so still ain't following some things. You will help me strongly with your answers.