In all the good number of years I have been trading, I never had of tradeup until today. What is funny is that they claim that the platform has been 10+ years on the market. Older than the likes of Binance, Bitmex

I suggest that you stick to popular and reputable exchanges.
You can easily look up the trading fees under the FAQ sections or even by just a simple search on the browser, and then you make comparisons. Fees vary from platform to platform, account tier levels and staking benefits.