I found this, but it's missing the past several trading sessions and does not seems to be using very delayed data. Seems broken. Anyone know of something better for free? Maybe I have to make my own market profile. https://edgeofvalue.com/chart/SPY
Market profile is owned by CME and software companies are meant to pay a fee for its use. https://www.windotrader.com/
Time and price are the core market profile concepts. TPO = Time Price Opportunity. However, most market profile charts that I have seen include volume too. I would be interested in seeing both. Looks like I might have to make my own market profile.
There are fairly good apps that even ping you when a favourable trading condition comes up. It’s aligned to your trading strategy and preferences. But as far as I’m aware, they are not free, at least the ones I’ve used, with good results.