GammaWins Calculator is already usable, with features I couldn’t find elsewhere (like charts with time on the X-axis). I’m adding more unique ones that traders I talk to keep asking for. I'm still using EOD data that is cheaper than live data, but plan to switch to live data soon.
If you trade options, I'd love to hear from you and understand your trading workflow. If you like this tool and want to hear more, I would be happy to share updates with you more regularly. Just send me an email, address at the end of the calculator page.