Does StormGain charge interest?

Excuse me, I'm a bit confused about the fees and charges associated with StormGain. Could you please clarify if StormGain charges any kind of interest on the funds that are deposited or traded on their platform? I'm particularly interested in knowing if there are any interest rates applied to idle balances or whether the platform has any lending or borrowing services that involve interest charges. It would be great if you could provide a clear and concise answer to help me make an informed decision. Thank you.