About
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. The app allows you to do simple and quick calculations with many basic functions, including multiplication, division, root, powers, factorials and even trigonometry functions. OpenCalc is customizable to meet all your needs. Contains no unnecessary ads or permissions. It is fully open source.
Info
Release
Last Updates
Improvements: * Translations updates * Implement BroadcastReceiver to start activity from TileService Fixes: * Formatting issue with zeros after comma * fix log crash when x < 0 * Crash when pressing square root after Syntax error
Rating
Rated for 3+
Genre
Tools
Reviews
This is a very light and simple calculator app. It gets the job done. If you're looking for basic Calc this is for you. There is no unit conversion or currency conversion yet.
Rakie James Millare
This app is an open source replica of the Google Calculator. This app unlike Google Calculator doesn't collect any data and doesn't therefore require Google Play Services on your device. The Material You design looks identical to the one found on Google Calculator. There haven't been many issues and if there were, a bug report on Github and it gets fixed very fast. Would recommend this app to everyone.
Riku Filppula
Love the app but one problem. The calculator is really high up and it would be wonderful if the height could be lowered so it's easier to reach the keys and to have more show as well.
Javier Hernandez
Whoa! An calculator without spying and constantly updated privacy terms! 😆 And it can calculate too! I hope it also is without constant updates and updated privacy violations too as math is quite stable. Think about the density of the dystopia we are living in, you dont natively have a unspying calculator (or keyboard or etc..) on your superphone and at the same time such option is made hard to find with dark patterns on app store.
Jooseppi Perssuo
Same as built in calc. Cannot see multiple history calculations without covering keypad.
Stephen Williams
The app is functional, no ads and no unnecessary features. The only problem, or two, I should say? Obnoxious colours and a lack of landscape mode.
Asad Farraj
Finally, no more using the annoying default Google Calculator which has tons of Google data collection draining my battery sending my data back to Google servers. This calculator is very lightweight at only 2MB and it has a lot of options in the settings. I love the AMOLED dark theme which helps save battery. My only suggestion would to add a "floating window" option like on LG's old apps (known as QSlide).
Huy Pham
It's what it says on the tin, a free, open source calculator app, extremely similar to the stock android calculator, such as the one you'd have in a Pixel phone. Would like to see the option to further customize decimal markers beyond what is set by the device locale!
Felipe Santini
A nice simple calculator that meets my needs (scientific functions and parentheses). The only thing I don't like is extra large font that requires me to scroll to see the whole answer.
psionl0
A feature request: 1. Decrease space occupied by buttons, give more space for results. 2. Option to decrease font size. 3. Adjust font size automatically so that expression and result fits the screen without horizontal scrolling. 4. Show not just the latest result but also previous results, as much as fits into the result space depending on font size (i.e. always show a little history without even dragging history bar) 5. Show not just the result but also the expression.
Dovydas Sankauskas
Works as intended & looks good. That's all that matters. Has no ads, tracking or overwhelmingly complex UI, good for daily use. Being able to write/edit mathematical expressions is one important thing I want in a calculator. This is one of the very few calculators which offer this feature.
Hitesh Kumar Saini