The CPI aggregates across many regions and goods, smoothing the volatility you feel each week. Our approach focuses on items and stores you actually encounter, exposing sharper spikes or dips. That way, planning dinners or commutes reflects changes that truly hit your budget.
When packaging shrinks while sticker prices hold, unit costs jump silently. We detect size changes and recalculate price per ounce, liter, or sheet, making quiet reductions visible. Over months, these adjustments accumulate, revealing why familiar brands suddenly strain an otherwise careful household plan.
Promotions can mask steady upward drifts. Loyalty programs may discount specific sizes while steering you away from better unit values. Our time-series views expose recurring cycles and range boundaries, so you can stock up confidently, avoid decoy deals, and protect your routine spending habits.