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Simple Calculator.

Simple Calculator.

Basic Casio-style calculator

1.6K ratings
126 reviews
With Ads
🔧 Utilities
💼 Business
Free
With Ads

Details

  • Released
  • Updated
  • December 19, 2017
  • August 17, 2026

Features

Developer

tasser gyati
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iphone
ipad
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Reviews summary↘︎
⭐126
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🔄6+ apps
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❓5 answered
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📦~ in 2 months
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About

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

✓Real-world logic, no forced order of operations
✓Running total display
✓Cost, sell, margin calculations
✓Add/subtract percentages in one step
✓Clean, intuitive interface with large buttons
✓Minimal, non-intrusive ads
Show original description

What users say

Summarized from real user reviews of Simple Calculator.. Based on 1.6K reviews and a 4.6/5 average, it highlights the 4 positives and 3 negatives reviewers mention most about this Utilities app.

Positive things

  • 👍Simple and easy to use
  • 💡Supports percentage calculations
  • 🚀Fast and responsive
  • 🔒No security issues reported

Negative things

  • 🐛Occasional display issues with underline artifacts
  • 📢Intrusive ads in free version
  • 💰Paid version not clearly advertised
See all reviews

What's New in Simple Calculator.

2.0.1

August 17, 2026

Minor improvements

User reviews

Most RecentHighest RatedLowest Rated

まさに普通

これほど有り難い事はない。仕事柄M+ M−は必要でこれの有るお陰で計算機持ち歩かなくてすむようになった。ただMRCを表示しなくても消せる御破算(リセット)ボタンが利益率の上に有れば評価5です
普通な普通人普通な普通人

Easy to use

Very easy
Johnny WLYJohnny WLY

Best one in the market, worth the money!

As an accountant I definitely recommend this calculator to everyone.

This has a double-zero button (along with single zero) and memory functions and bunch of themes if the standard looks boring!
Rishabh123NRishabh123N

Gottchaware?

Pop-up ads with screeching alarms, followed by a warning that your phone has been hacked and prompting you to download a repair program. Sketchy at best. App itself is basic but useful with both a memory and history function.
Health ProfessionalHealth Professional

Be careful: Porn

The first advert that came up was naked women
AlleysmomAlleysmom
See 121 more reviews

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User experience

🐞

Reported Bugs

2 issues

Incorrect calculation results in some cases

Bug

Ads appearing during critical usage scenarios

Bug
✨

Requested Features

3 requests

Add a dedicated 'C' clear button

Feature

Provide more customization options for key layout

Feature

Implement a history/memory function

Feature

FAQ

What does this calculator app do?

This app provides a straightforward calculator experience, mimicking the functionality of classic pocket calculators. It focuses on speed, accuracy, and real-world logic, without forced order of operations, and includes specific features for business use like cost, sell, and margin calculations.

What are the key features of this calculator?

Key features include real-world logic with a running total, business-specific calculations (cost, sell, margin), the ability to add or subtract percentages in one step, a clean and intuitive interface with large buttons, and minimal, non-intrusive ads for a distraction-free experience.

Is this calculator app free to use?

Yes, the app is free to use. It is supported by minimal, non-intrusive advertisements, ensuring that your calculations remain distraction-free, even in professional settings.

What kind of calculations can I perform with this app?

You can perform basic arithmetic operations with real-world logic, similar to a classic pocket calculator. It also excels at business-related calculations, allowing you to easily handle cost, sell, and margin computations, and add or subtract percentages in a single step.

Is this app compatible with my device?

The app is modernized for your iPhone and iPad, suggesting it is compatible with Apple's iOS and iPadOS operating systems. Specific version compatibility is typically found in the app store listing.