Simple Calculator - SimpleCalc

The classic desk calculator on your phone. Real Casio logic, Tax & Margin keys.

The classic desk calculator experience, now on your phone.

Tired of complicated scientific calculators that use confusing order of operations? Simple Calculator - SimpleCalc brings you the reliable, "running total" Casio-style logic that business professionals and retail owners have trusted for decades.

Whether you are at the office, in a retail shop, or managing home finances, get fast and accurate results with the familiar 12-digit layout you know by heart.

✅ Ideal for Business and Retail

Streamline your daily bookkeeping with dedicated tools for professional results.

Tax Calculations: Dedicated TAX+ and TAX- buttons for instant GST, VAT, and sales tax computations.

Profit & Margin: Quickly calculate Cost, Sell Price, and Profit Margin to manage your retail markups on the fly.

Grand Total (GT): Easily tally multiple results with the iconic Grand Total feature.

✅ Classic Calculator Features

Real Running Total Logic: No complex PEMDAS formulas. It calculates as you type, just like a traditional pocket calculator.

Large 12-Digit Display: High-visibility screen designed for professional financial tasks.

Memory Keys: Includes standard M+, M-, and MR/MC functions for complex multi-step problems.

Percentage & Square Root: One-tap keys for quick discounts and basic math.

✅ Modern Comfort, Retro Feel

Custom Themes: Choose from classic gray, sleek dark mode, or vibrant vintage styles.

Haptic Feedback: Optional vibration on keypress to give you that tactile "physical button" confidence.

History Log: Swipe to review your recent calculations so you never lose track of your work.

Download the most reliable Casio-style calculator today and simplify your daily business math.