Does the Gemini app really work?

I'm curious, have you had any experience with the Gemini app? I've been hearing a lot about it lately and I'm wondering if it's really as good as people say it is. I'm looking for a reliable platform to trade cryptocurrencies and I want to make sure I'm making the right choice. Can you tell me more about your experience with the Gemini app? Does it have a user-friendly interface? Are the fees reasonable? And most importantly, is it SAFE and secure to use?