Simple Calculator - SimpleCalc

Everyday Calculation Apps

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About this app

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.

Ratings and reviews

The calculator works great very reliable! The pop up ads are annoying. They can sometimes interfere with your work. If you don't mind buying a calulator this may not be a good option; it does offer a day watch this video and use it add free for a day if you have a lot of work to do you can do that or just purchase the app. I am planning to buy it, but need to get a Google play card. If you don't want to mess with ads, or buying one... keep looking!

Good calculator in terms of function. For some reason, many of the calculators on the Play store are imposing order of operations (PEMDAS) which is nearly useless for everyday non-academic calculations. We just need a pocket calculator-style function with a running total. This app works great for that. HOWEVER, there're quirks. For example, going to Settings clears the current operation, even if you use memory function to store a value. So, you cannot change your number format mid-calculation.

the default calculator changed its keyboard, and it's operation to some degree, which for me was more complicated. I chose this calculator from the Play store, simply because of the appearance of the icon on their ad, and I'm glad I did. the options available for complicated equations are very straightforward and easy to use. WILD BILL NOLEN 🙂

What’s new

bug-fixes and minor improvements