Biz Calculator Tax, His., GT

Streamline estimates, accounting tasks, and daily calculations with one efficient calculator.
This app is a practical calculator featuring not only basic arithmetic operations but also tax calculations, GT totals, history review, percentage calculations, and rounding. Its intuitive button layout handles everything from daily use to work-related calculations smoothly.

【Key Features】
・Tax Calculation
Supports tax-inclusive display and tax-exclusive reverse calculation. Tax rates can be set freely.

・GT Summation
Automatically accumulates multiple calculation results for instant totals. Ideal for estimates and aggregation tasks.

・Calculation History
Saves formulas and results with timestamps. Quickly review past calculations later.

・Percentage Calculations
Handles practical percentage calculations like discounts, markups, and composition ratios.

・Fractional Rounding
Supports specifying decimal places. Choose round down, round up, or round to the nearest whole number—designed for ease in accounting and quote creation.

・Calculation Mode Switch
Toggle between multiplication/division priority and input order calculation to suit your task.

・Offline Support
Basic functions work offline. Use it instantly even when you're out and about.

【Recommended For】
・Those who want to quickly verify amounts before estimates or invoices
・Frequent users of tax-inclusive, tax-exclusive, and discount calculations
・Those who want to manage multiple calculation results together
・Those looking for a calculator that saves history
・Those who want to smartly handle practical calculations, including rounding

【Premium Features】
Enjoy enhanced comfort with ad-free use, expanded digit display, real-time formula display, copy functionality, increased history storage capacity, and history export.

Elevate everyday calculations to a practical, business-ready level.
A calculator app that balances simplicity and practicality.