Shopping Calculator

The ultimate calculator for supermarket and drugstore shopping. Discounts, tax, unit price comparison, and cart totals all in one app. ◆ One-Tap Discounts & Tax ・Tap for 10/20/30/50% off or enter custom rates ・Handles 10% tax and 8% reduced rate; calculates discount + tax simultaneously ・Discount amount shown in red; reverse-calculate tax-excluded price from tax-included ・Long-press to customize tax rates freely ◆ Unit Price Comparison ・Enter price and quantity (g, ml, count) for two items ・Auto-calculates unit price per 100 and highlights the cheaper option ・Shows percentage savings; perfect for comparing bulk vs. small packs ◆ Cart Total & Budget Management ・Add items to your cart to see the running total instantly ・Set a budget to track remaining balance; red warning if you overspend ・Cart contents auto-save for quick review at checkout Fully offline. All features work without an internet connection.