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

Graph 89

A TI Graphing Calculator EmulatorGPL-3.0-only

CalcYou

Privacy Focused Calculator app built with MD3GPL-3.0-only

ExprEval

Math expression calculator with variables and functions supportMIT

XCSoar

Tactical glide computer and mapsGPL-2.0-only

AlexCalc

Scientific calculator with LaTeX equation displayAGPL-3.0-only

Dib2Calc

The crazy calculator (RPN mode). Once you get used to it, you will love it :-)GPL-3.0-or-later

ArityCalc

Scientific calculator for Android 5+Apache-2.0

Terminal Emulator

Turn your device into a computer terminalApache-2.0

MaximaOnAndroid

Computer Algebra SystemGPL-2.0-or-later

Schulrechner

The calculator you know from schoolGPL-3.0-only

OpenCalc

Simple and beautiful calculator for AndroidGPL-3.0-only

yetCalc

Progressive calculator, converter and much more.BSD-3-Clause

microMathematics Plus

Computer algebra systemGPL-3.0-only

Vape Tools

Coil and e-liquid tools.Unlicense

PariDroid

PARI/GP is a computer algebra system designed for computations in number theoryGPL-3.0-or-later

Equate

Convert unitsGPL-3.0-only

Suntimes Calendars

A calendar provider add-on for Suntimes.GPL-3.0-or-later