What is the Unibot swap fee?

Excuse me, could you please clarify what the Unibot swap fee entails? I'm trying to understand the costs associated with using the platform for cryptocurrency exchanges. Is it a flat rate, or does it vary based on certain factors like transaction size or the type of cryptocurrency being swapped? I'm also curious if there are any hidden fees or charges that I should be aware of before proceeding with a swap. Your insight would be greatly appreciated.