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Last updated on: 2025-05-14
Android Apps > Tools > OpenCalc - Calculator
OpenCalc - Calculator icon

OpenCalc - Calculator

3.1.4
Darkempire
4.19
666 reviews
100,000+
Downloads
Free

Simple and beautiful calculator

OpenCalc - Calculator Screenshot
OpenCalc - Calculator Screenshot
OpenCalc - Calculator Screenshot
OpenCalc - Calculator Screenshot
OpenCalc - Calculator Screenshot
Google Play
Interested in open source? Check out the top awesome open source projects! Top open source projects

About OpenCalc - Calculator

OpenCalc - Calculator is a tools app developed by Darkempire. The APK has been available since November 2022. In the last 30 days, the app was downloaded about 13 thousand times.
It's currently not in the top ranks.
It's rated 4.19 out of 5 stars, based on 670 ratings. The last update of the app was on January 22, 2025. OpenCalc - Calculator has a content rating "Everyone".
OpenCalc - Calculator has an APK download size of 1.96 MB and the latest version available is 3.1.4. Designed for Android version 5.0+. OpenCalc - Calculator is FREE to download.
Description
This modern and beautiful scientific calculator will help you solve all your calculations. It is simple, effective and contains no advertising. It has different themes to suit your phone perfectly.
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More data about OpenCalc - Calculator

Price Free to download
Total downloads 170 thousand
Recent downloads 13 thousand
Rating 4.19 based on 670 ratings
Ranking Not ranked
Version 3.1.4
APK size 1.96 MB
Number of libraries 21
Designed for Android 5.0+
Suitable for Everyone
Ads NO ads

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Google Play Rating history and histogram

470
45
45
11
91

Downloads over time

OpenCalc - Calculator has been downloaded 170 thousand times. Over the past 30 days, it averaged 430 downloads per day.

Changelog

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Developer information for Darkempire

Darkempire

darkempirepro@gmail.com

Website

N/A

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Comments on OpenCalc - Calculator for Android

★★★★★ Great app EXCEPT it blocks the input of a decimal point before an operator symbol. (edit: only when there is another decimal later in the equation. Try changing 52x0.5 into 52.5x0.5. The program will not accept adding a decimal between 2 and x.) Please change this behavior!!! What we type should be what we get. Just display syntax error if it doesn't make sense. (further edit: also doesn't accept lone operators? Stupid. It shouldn't block any inputs. At least make that a setting plz)
★★★★★ Bug report: the dark theme in this app is displayed as "amoled" while amoled is displayed as "dark". Everything else is excellent, and... especially, open-source.
★★★★★ The best calculator. Great icon, no permissions, nice amount of settings, small package size. Easy choice to replace the Google version.
★★★★★ Please enable us change thousands separator to dot and decimals separator to comma
★★☆☆☆ Good start, my 2 issues: the dark theme buttons are egregious. The bright RGB UI looks amateur. E.g: Using the My Material design with my phones dark mode on looks amazing. There needs to be a My Material (dark) theme as an option, I'm not switching to dark mode on my. Phone specifically for this app. The drop arrow containing cos, sine, etc. doesn't stay down. I have to press it each time I open the app. For me, the button size and spacing is perfect when the drop down is. Please add these!
★★☆☆☆ I've had to delete this app because no matter what I do, it will not retain history. I've emptied cache and storage, and it's made no difference. I've uninstalled and reinstalled, and it's made no difference, the history is not retained.
★★☆☆☆ The calculator can give results in scientific notation, but I don't see any simple way (big E button) to enter values in scientific notation.

Google Play Rankings

This app is not ranked

Technologies used by OpenCalc - Calculator

OpenCalc - Calculator is requesting 4 permissions and is using 22 libraries.
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