YieldWise is a free, privacy-first financial calculator that helps you compare High-Yield Savings Accounts (HYSA) against S&P 500 index fund investing. Unlike traditional tools, we show you inflation-adjusted purchasing power over time with real-time, interactive charts. No signups, no tracking—your data never leaves your device. Built for young professionals and FIRE enthusiasts who want transparent, unbiased math to make confident financial decisions.
Hey Product Hunt!
I'm the founder of YieldWise. A while ago, I was trying to decide whether to park my emergency fund in a High-Yield Savings Account or invest it in the S&P 500.
I searched everywhere for a simple tool to visualize this comparison, but everything I found was either:
Bloated and required email signups
❌ Too expensive
❌ Completely ignored inflation (the silent killer of wealth)
❌ Or simply didn't exist
So I built YieldWise myself.
It's a free, lightweight, privacy-first calculator that does one thing really well: shows you the REAL, inflation-adjusted math behind your savings vs. investing decisions. No accounts, no tracking, just pure numbers.
We just launched and would absolutely love your feedback:
✅ Does the UI make sense?
✅ Is there a feature you wish it had?
✅ How can we make financial literacy more accessible?
Drop a comment below, upvote if you find it useful, and feel free to reach out to me directly at support@yieldwisecalculator.com.
Thanks for supporting indie creators and developers!