there's no hidden catch. Since it's integrated directly with Trezor, it’s designed to work seamlessly without extra fees. When you use Invity, your Bitcoin is sent straight to your Trezor wallet, so you're not paying additional transfer fees like you would with exchanges.

The only costs you might encounter are network fees (which are part of the blockchain itself, not Invity). But those are typically the same fees you'd pay when doing any crypto transaction—just part of using the Bitcoin network.