5 free tools
Free Buying Tools
Real, working calculators that do the tricky maths for you — compare unit prices, decode discounts, judge cost per use, reveal the true cost of financing, and decide whether to repair or replace. No sign-up, nothing stored.
Free Tool
Price Tracker Guide
Use price history to spot genuine deals, dodge fake discounts and buy at the right time.
Open the tool →Free ToolPrice-Per-Unit Calculator
Compare two pack sizes and see which is genuinely cheaper per gram, ounce or count.
Open the tool → Free ToolDiscount & Sale Price Calculator
Turn a percentage off into the real final price — and stack a second discount correctly.
Open the tool → Free ToolCost-Per-Use Calculator
See what an item really costs each time you use it, so durable buys win their fair fight.
Open the tool → Free ToolFinancing & Installment Calculator
Reveal the true monthly payment and the total cost of 'buy now, pay later' credit.
Open the tool → Free ToolRepair-or-Replace Decision Tool
Get a clear verdict on whether a broken item is worth fixing, using the 50% rule and more.
Open the tool →