TradingView headquartered in London offers a place for users to chart, trade, and chat about markets, including customizable visualizations via TradingView Desktop, downloadable and compatible with Windows, Mac, and Linux computers, with native multi-monitor support.
The functinality and technology is similar on both platforms. From my personal point of view, TV is more appealing visually and easier to navigate as it seems more intuitive than MT5 or MT4. There is plenty of community feedback and and customer support on paid subscriptions …
This platform is suited for retail traders that use discretionary trading strategies and automated strategies alike. As far as HFT goes I cannot say as I haven't developed any strategies of that kind. So, i can't determine its appropriateness. For forex and stock trading I would say it has everything you need. I also can't vouch for how well it performs for options traders, I would imagine it may not be the go to app as I don't see any og the Greeks that options traders would need to monitor to make trading decisions.