Calculator Pro: Calculator App Icon

Calculator Pro: Calculator App

Simple Design Ltd.
★★★★★ 4.9 Tools v1.1.6 1,000,000+
Verified Safe & Direct
Download APK Google Play
Calculator Pro: Calculator App Android App Screenshot 1Calculator Pro: Calculator App Android App Screenshot 2Calculator Pro: Calculator App Android App Screenshot 3Calculator Pro: Calculator App Android App Screenshot 4Calculator Pro: Calculator App Android App Screenshot 5Calculator Pro: Calculator App Android App Screenshot 6
Version
1.1.6
Downloads
1,000,000+
Updated
Jul 9, 2026
Developer
Simple Design Ltd.
Category
Tools
Content Rating
Everyone
Package
calculator.converter.conversioncalculator.calculatorapp
Platform
Android

Download Sources

Device Configuration

Old Versions of Calculator Pro: Calculator App

Version Size Min OS Architecture Release Date Action
v1.1.5 21.1 MB Android 23+ x86 x86-64 armeabi-v7a arm64-v8a Mar 29, 2026 Download
v1.1.4 10.9 MB Android 21+ x86 x86-64 armeabi-v7a arm64-v8a Apr 14, 2026 Download
v1.1.3 7.6 MB Android 21+ x86 x86-64 armeabi-v7a arm64-v8a Jan 14, 2024 Download

Split APKs Installation Guide

Some apps are distributed as Split APKs (multiple .apk files packaged together) to optimize resources. Standard Android installers cannot open them.

1. Download Split APKs Installer (SAI) from Google Play Store.
2. Download the app archive (.apks) using the download sources listed above.
3. Open SAI, click "Install APKs", choose the downloaded archive, and click Install.

About This App

Welcome to use this handy calculator, a simple and practical tool for your daily life with a clean interface!

The calculator can meet all your needs perfectly, like:
✔️Basic & Scientific Calculations
✔️Currency & Common Units Converting
✔️Tips, Discounts & Tax Calculating

Key Functions You Can Get:

1. Basic & Scientific calculator
• Support 4 basic math operations.
• Support scientific calculations: Square + Root + Parentheses + Percentage + Trigonometric + Exponential + Logarithmic functions.
• Edit expressions freely with a movable cursor.
• Keep the last expression after an accidental quit.
• History available for copy-and-paste.

2. Unit conversion
• Applicable for various types of unit conversion: length, weight, area, volume, time, and data size.
• Offline assistant for you to do the math in daily life.

3. World currency conversion
• Include 150+ currencies to convert, like dollar, euro, pound, yuan, yen, etc.
• Support converting 4 currencies altogether.
• Get the real-time exchange rate of all currencies automatically.

4. Tip calculations
• Get the total bill, tips and amount per person instantly by inputting the billing amount and tip rate.
• Tax optional.
• Split the bill easily by sharing results with your friends.

5. Discount & tax calculations
• Know the discount price via entering the original price and discount percentage.
• Find out how much you can save intuitively.

6. Loan calculations
• Track your total repayment and monthly bills.
• Applicable for various payback methods, such as equal principal and equal installments.

7. Date calculations
• Allows to determine the interval between two specific dates.
• Ideal for countdown towards a special date.

Additional functions:
• Simple, intuitive and user-friendly design with large buttons and optional vibration.
• Customizable precision and decimal place.

User Reviews

Lee Geiger Aug 31, 2023
★★★★★

The calculator is very good, very clear to read, if you prefer, Deg, you will need to reset Deg, & the arrow button to the left, each time of use. This program is geared for Trig, but does geometry just fine. I have the basic calc in my wife's phone, but touching the arrows, it becomes a scientific calculator for me. It is very good on cell phones too. I installed it on everything that I have. It is very capable & yet easy to use. I enjoy it as my preferred Calculator.

Gee Pee May 9, 2024
★★★★★

Great, simple, practical, easy-to-use calculator that suits all needs. Keeps track of numbers so a mistakenly entered one can be deleted and the correct one can be entered without having to start the calculation over. Can be used to convert units and currency and calculate discounts, tips, loans, and even dates. Big, easy-to-read display. Basic and scientific calculator options. All around, superb! Best calculator app I've ever seen or used. Would donate to creator if I could do so via PayPal.

A.M. Lynn Dec 3, 2022
★★★☆☆

What is with this app that show a download size that's 1/4 the size once it's first opened? Where's the additional 17 to 18 Mb coming from? The design is off-putting, too. I like the options to switch been basic and advanced calculators and the tab with features. What I don't like is the app's color scheme and "smile" underline reminding me of Amazon products.

Philip Keir May 21, 2024
★★★★★

Not long downloaded / installed this app, but already has proven itself. By comparison my old calculator could not convert centimetres into inches. So that in itself has made this app a very useful app for me. Also it will do other conversions as well, and it's easy to switch between them all. Really nice and useful app, easy to use, well laid out, would highly recommend it, well done.

How to Download Calculator Pro: Calculator App APK

  1. Enter the package name calculator.converter.conversioncalculator.calculatorapp on the APK Downloader.
  2. Select your device architecture (ARM64 recommended for modern devices).
  3. Click Download to get the merged APK file.
  4. Transfer and install the APK on your Android device.
  5. Keep Updated: Visit APKDER.COM regularly to search for and download the latest secure versions of your favorite apps.

Frequently Asked Questions

Yes! Every file hosted on APKDER undergoes rigorous security verification. We verify that the cryptographic signature matches the official signature from the developer, ensuring the app hasn't been modified or tampered with.

To install it, you first need to enable "Unknown Sources" in your Android device's security settings. After downloading the APK file from APKDER, tap it to begin the installation and follow the on-screen prompts.

Yes! As soon as the developer releases a new version of Calculator Pro: Calculator App, we will scrape and post the updated APK on APKDER. You can simply download and install the new APK over the existing installation without losing your app data.

Security & Signature Verification

This APK download is 100% safe. We verify that the cryptographic signature of the file matches the official developer credentials. No modifications or adware are injected.

Photos/Media/Files Basic Access
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
Storage Basic Access
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
Other Basic Access
  • view network connections
  • full network access
  • control vibration
  • prevent device from sleeping
  • read Google service configuration

Security Specifications

MD5 Checksum e1f00b3b83cbeca9bdea97d74acfa6ad
SHA1 Fingerprint 73:8A:EA:56:27:4B:43:AD:A0:38:AE:9D:DA:79:E1:C5:0F:25:CB:1C
Certificate Owner CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US

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