Apps & Tools · Live compounding app
What steady adding actually does, run through real history
The finished work
What steady adding and compounding actually does: drag the monthly amount and watch the future move against the S&P 500’s real history.
What they asked for, word for word
I keep meaning to start investing and I never do. I want a simple, beautiful app that runs in my browser and makes it real for me: I type in what I have now and what I can add every month, and it shows me, against the S&P 500's actual history, what steady adding and compounding does by the time I'm 45, 55, 65. Let me drag the monthly amount and watch the future move. Be honest about the bad decades too, I don't want a fantasy chart. No accounts, no jargon, no advice-speak. Just the truth of compounding made visible enough that I finally start this month.
What the studio made
A working browser app that runs the exact plan through the S&P 500’s real year-by-year history, the good runs and the ugly ones, and shows where it lands by 45, 55, and 65. Drag the monthly amount and the future moves. Nothing is saved, nothing is sent anywhere, and it runs live in the viewer.
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