[vinaypai]

Congrats on building and launching your app.

However, in my opinion, you need different examples to show the strengths of this app. A lot of the examples on your page look kinda clunky and error-prone to me, and better solved with a spreadsheet.

Take the "personal finance" one. The "total expenses" row lists out all the expenses adding them out one at a time. In a spreadsheet you'd just type =sum(A1:A5). Imagine it wasn't just 5 but 20 items. Now your sum gets pretty unweildy. How confident can you be from looking at that sum that you haven't missed one of the expense items? In a spreadsheet you know pretty clearly that =sum(A1:A20) has all those rows. Better still, if you insert a row to add another item, it'll update the sum for you.

The "Investment returns" sheet is another example. What if I wanted to extend that to 30 years? In a spreadsheet I'd just copy the last row and past it in the the next 10 cells and I'm done. Here's I have to paste it 10 times, and then manually update each row and hope I didn't make a typo anywhere. What if I didn't want my savings to be constant but assume that I'm going to increase savings a year over time?

The unit conversion is somewhat neat though, so maybe examples that use that a bit more?

[jklp]

Thanks great feedback and completely agree about the clunkiness around sums!

As a mitigation I did add row highlighting (if you hover over a var it'll highlight the row it was defined at), but the underlying problem of dynamic sums is still there.

I was working on a TOTAL() function (which someone also mentioned in this thread), but conceptually I also think some of the calcs are better in a tabular format, so have been toying around with designs with tables etc.