There is no reason at all for this to be server-hosted. I have of course done this for myself a very long time ago creating an effectively identical feature set using spreadsheets and even put them onto Microsoft's sharing pages (no idea what happened to them, it was such a long time ago).
I'm not saying this isn't a better solution than Excel. You work with what's available at the time. But there is nothing at all about the size of the data or complexity of the calculations that requires it to be centrally hosted. This is financial data and you're not a bank with reporting and privacy requirements being audited by state charter associations and federal law enforcement. No reason for people to trust you with this data. Make this an executable someone can put on their own machine. Don't require a network connection. Don't send telemetry.
Like Frost1x, though, maybe I'm just a minority and you don't need my business. Ultimately, do what the market will tolerate, I guess.
I'm not saying this isn't a better solution than Excel. You work with what's available at the time. But there is nothing at all about the size of the data or complexity of the calculations that requires it to be centrally hosted. This is financial data and you're not a bank with reporting and privacy requirements being audited by state charter associations and federal law enforcement. No reason for people to trust you with this data. Make this an executable someone can put on their own machine. Don't require a network connection. Don't send telemetry.
Like Frost1x, though, maybe I'm just a minority and you don't need my business. Ultimately, do what the market will tolerate, I guess.