I think the different data that shown is normal, AFAIK, the gap because API used by uniswap vision and chartex have different speed to grab data. something normal. but if uniswap vision and chartex have more higher than uniswap.org, something strange happens or it can be manipulated data. CMIIW.
I don't know which one is more accurate though. If chartex has faster and more accurate data, then it's their strong point (reason to use). But how to prove that?
Anyway, the use of token, I believe, to get a higher tier account. It can be interesting though, if professional/expert could get trading advice/prediction from expert/AI.