The Real Price Tag

About

The Real Price Tag shows you the *real* cost of any online purchase — not the sticker price, but the future you give up by spending instead of investing.

When you land on a product page or open your cart, a small badge appears in the corner showing what that money would be worth in a few decades if you invested it instead. Click for the full breakdown.

What it shows
• Sticker price vs. compounded future value at your assumed return rate
• How much growth you forfeit by buying now
• Optional: hours of your life the purchase represents at your wage

Where it works
• Amazon product pages and cart/checkout
• Shopify, Target, Best Buy, Walmart, and most major retailers
• Any site that publishes price data via JSON-LD Product schema or Open Graph product meta tags

Settings
• Adjustable annual return rate (default 10% — S&P 500 historical average)
• Adjustable time horizon (1–40 years)
• Optional salary or hourly wage input

Privacy
• 100% local — no data leaves your device
• No analytics, no tracking, no account
• Your settings sync via Chrome's standard storage API; we never see them

Not financial advice — just math, to make you think twice.