Is NEXUS for free?

I'm curious to know, is the NEXUS platform completely free to use? Or are there any associated fees or costs that users should be aware of? It seems like a very comprehensive cryptocurrency and finance solution, but I'm wondering if there's a catch in terms of pricing. Clarifying this upfront would be greatly appreciated as I'm considering integrating NEXUS into my financial portfolio. Could you elaborate on the cost structure, if any, and any potential hidden fees that might arise? Thank you for your time and assistance in this matter.