Inflation Calculator

Inflation calculator for various countriesMIT

Calculator++

Scientific calculator with sleek interface and powerful capabilitiesApache-2.0

Calculator-inator

Calculator & ConverterGPL-3.0-only

Fossify Calculator Beta

Simple and open-source calculator for quick and easy calculationsGPL-3.0-only

HeatCalc

Heatsink calculatorGPL-3.0-or-later

RoomMates

Rent and tip calculatorGPL-3.0-or-later

WhatExp

Scientific calculatorGPL-3.0-only

Rule of Three

Simple "calculator" for the rule of threeApache-2.0

nitroxCalc

Nitrox Calculator for DivingGPL-3.0-only

Currencies: Exchange Rate Calculator

An exchange rates currency converter for AndroidGPL-3.0-or-later

RPN

Very easy to use RPN CalculatorGPL-3.0-only

RPN

Reverse Polish Notation CalculatorGPL-3.0-or-later

CalcYou

Privacy Focused Calculator app built with MD3GPL-3.0-only

DozenCalc

A dozenal (duodecimal, or base twelve) calculatorGPL-3.0-or-later

Mather

A powerful expression-based calculator, unit converter, and computation engineGPL-3.0-or-later

VitoshaPokerOdds

Monte Carlo based Texas Holdem calculatorGPL-3.0-or-later

RPNcalc

A simple, modern calculator that uses RPN (Reverse Polish Notation).GPL-3.0-only

PAFCalc

DIY fertilizer calculator for planted aquariumsGPL-2.0-only

Qalculate!

Powerful and versatile multi-purpose calculatorGPL-2.0-only

JRPN 16c

Programmer's calculator similar to an HP 16c.Apache-2.0