calculator — independent software & tools
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Tirailleur
A practical ballistic calculator for precision rifle shooting.
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DriveSoberly
Alcohol blood rate computer for driving
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Compound Calculator
Simple offline compound interest calculator
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LoanPro
Fast mortgage, auto, credit, and personal loan calculations
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solve-engine
An embeddable expression engine for natural-language calculations: units, currencies, percentages, dates and matrices, with the parsing and evaluation plumbing already built.
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VAT Calculator
Calculate VAT for any country in the world
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Digital Calculator
A neumorphic themed digital calculator which has keyboard and dark mode support
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RPN
Reverse Polish Notation Calculator
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Is it Prime
Prime number check.
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Extended emulator of МК 61/54
Emulator of "Electronika МК 61/54" RPN programmable calculators.
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OpenCalc
Simple and beautiful calculator for Android
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Graph 89
A TI Graphing Calculator Emulator
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DozenCalc
A dozenal (duodecimal, or base twelve) calculator
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WriteOn: Simple Notepad
A clean function-based intuitive note-taking app with Material You design.
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ExprEval
Math expression calculator with variables and functions support
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Dib2Calc
The crazy calculator (RPN mode). Once you get used to it, you will love it :-)
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Qalculate!
Powerful and versatile multi-purpose calculator
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JRPN 16c
Programmer's calculator similar to an HP 16c.
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Fourth Tools
Useful tools app
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Calculator You: Math & Units
Calculator You is a beautiful calculator for solving simple tasks.
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microMathematics Plus
Computer algebra system
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Calculator
A Soft UI Calculator
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Distribution Calculator
Easily operate with uncertainty
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DebtCalc
Calculating the debt at your finger tips.
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Neumorphic Calculator
A sleek, customizable calculator with a soft, modern, neumorphic-inspired design
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Unitto — calculator and unit converter
Calculate and convert anything
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Vanilla
A cute and elegant calculator app for Android
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Calculator Notification
Move your Calculator into the notification drawer
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Calculator M3
Clean, private calculator — no tracking, no ads, optional on-device AI.
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NerdCalci
Calculator for nerds with variables, syntax highlighting, and file sessions
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Voucher Calc
Calculates how many vouchers you need to use
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RPNcalc
A simple, modern calculator that uses RPN (Reverse Polish Notation).
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Expression Evaluator
A simple math expression evaluator.
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Inflation Calculator
Inflation calculator for various countries
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PariDroid
PARI/GP is a computer algebra system designed for computations in number theory
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Schulrechner
The calculator you know from school
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dahliaOS Calculator
Perform basic calculations
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AlexCalc
Scientific calculator with LaTeX equation display, buttons and plaintext input
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SoulCalc
Notepad-style calculator with variables, line references, multi-line support
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CalcYou
Privacy Focused Calculator app built with MD3
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Mather
A powerful expression-based calculator, unit converter, and computation engine
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RPN
Very easy to use RPN Calculator
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Calculator++
Scientific calculator with sleek interface and powerful capabilities
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ArityCalc
Scientific calculator for Android 5+
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Rental Calc
Evaluate rental property investment prospects
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Tip Calculator
Simple tip calculator that operates on pre-tax amount
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yetCalc
Progressive calculator, converter and much more.
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calc-mcp
MCP server with 21 tools for things AI is bad at — math, hashing, encoding, date arithmetic, and more.
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CSharpCalculator
🔢 Build a simple console calculator in C# to perform basic arithmetic operations and handle division by zero efficiently.