Open Source Calculators for Android

Introducing Fossify Calculator – your versatile and efficient tool for all your calculation needs. Enjoy a stylish, modern design paired with powerful functionality, perfect for both simple calculations and more complex tasks like currency conversion.

A simple and beautiful calculator for Android.

Privacy focused calculator app built with MD3.

The Unit Converter app: easy, immediate and multi-platform.

Yet another calculator designed and developed for Android.

Discover the ultimate calculator experience with our beautifully designed app, featuring 60+ stunning color themes to match your style. Whether you're tackling complex scientific equations or simple everyday calculations, our powerful and user-friendly interface makes it all...

Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!

Open-source calculator app based on Windows Calculator, available for desktop, mobile, and web. Supports scientific, unit conversion, and programming functions.

Calculator, converter and so much more!.

Calculator++ is an advanced, modern and easy to use scientific calculator.

😎 Calculator. Converter. Superior. Always.

Stylish design, versatile features – the ultimate calculator for Android.

Currencies is a simple and straightforward currency converter.It is not intended to be used for realtime financial business, rather to be a handy companion e.g. on vacations.

📟 An improved version of OpenCalc.

CuteCalc is a lightweight, fast and open-source Android calculator app written in Kotlin & Jetpack Compose

Android UI of the almighty Qalculate! calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).

Curo Calculator is the ultimate tool for anyone needing to calculate loan, lease, and hire purchase repayments and interest rates. Perfect for both personal users and finance professionals, this app simplifies complex financial calculations.

The calculator you know from school.

NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.

A calculator with syntax highlighting that supports user-defined variables and functions, math-like syntax, and some more advanced operations such as derivation and integration (estimate), and complex numbers.

MathsGee is a global, STEM-focused Q&A platform where you can ask people from all over the world educational questions for improved outcomes.

GeoGebra 3D Calculator is an online tool for graphing 3D functions, plotting surfaces, and constructing solid objects. It enables users to visualize and manipulate 3D math problems, plot f(x,y) functions and parametric surfaces.

A Simple but elegant Calculator app made with Flutter using Google's Material Design with Currency (Exchange Rate) and Unit Converter.

Free online algebra calculator from GeoGebra: solve equations, expand and factor expressions, find derivatives and integrals

A simple calculator and unit converter app with Material Design 3 inspired by Windows Calculator.