Calculator

LoanPro is a fast financial calculator for running loan numbers without a spreadsheet. Enter any three of loan amount, payment, term, and interest rate, then tap the missing value to solve it. It works for mortgage scenarios, vehicle loans, credit cards, and other amortized loans. Features: - Calculate payment, loan amount, term, or interest rate - Supports taxes, insurance, down payment, LTV, PMI, and bi-weekly views - Quick calculator-style numeric entry - Percent, decimal, backspace, memory, and clear behavior tuned for repeated use - No ads, analytics, tracking, or network access

Mather is a powerful, simple-to-use, no BS expression-based computation engine. In addition to basic calculator arithmetic, it supports all of the following. Powered by Math.js. * Variables * User-defined functions * Easily-accessible math constants, e.g. 'pi' * Complex math expression evaluation * Trigonometric functions * Unit conversions (and more general unit arithmetic) * Complex numbers * Matrices * and more

Maxima, a full featured computer algebra system, now runs on your Android mobile devices. Maxima, and its predecessor Macsyma is one of the most long-established software in the world, back in 1960s at MIT LCS and Project Mac. You can perform many many math operations such as integration, differentiation, matrix operations, rational numbers, symbolic treatment of constants such as pi, e, euler's gamma, symbolic and numerical treatment of special functions such as sin(x), cos(x), log(x), exp(x), zeta(s), and many more. Maxima on Android is a port of Maxima on the Android operating system. Thanks to Sylvain Ageneau' effort on porting Embeddable Common Lisp to the Android OS, the latest Maxima code runs nicely on ECL on Android with very small changes to the source code. The installation of the software requires total of 90MB on the storage. 30MB needs to be installed on the internal storage. The rest of 60MB can be installed either on the external or the internal storage. The first run of the apk will ask you where you want the 60MB to be installed.

A simple calculator and unit converter app with Material Design 3 inspired by Windows Calculator Features - Standard Calculator - Calculator history - Date Calculator - Simple unit converter (Angle, Time, Data, Length, Area, Volume, etc...) Planned updates - Scientific calculator

NerdCalci is a powerful calculator designed for nerds and power users who need more than basic arithmetic. Features: - Offline - Works without internet - Variable support - Define variables and reuse them in calculations - Percentage calculations - Natural syntax like "20% of 50000" or "15% off 1000" - Unit conversions - Natural syntax like "10 m in feet" or "100 kmph to mph" - Calendar-aware date and time engine with timezone support - Custom functions - Define your own functions with multi-statement support and scope isolation - Dynamic variables - Quickly compute block sums (`total`) and averages (`avg`) - Syntax highlighting - Color-coded numbers, variables, operators, and comments - Smart error diagnostics - See human-friendly explanation of math or syntax errors - Auto-completion - Smart suggestions for variable names - Comments - Document your calculations with # comments - Multiple files - Organize calculations in separate files with auto-save - Tags - Organize files with custom tags - Pin files - Keep frequently used files at the top - Search - Search your files easily by name or tag - Duplicate files - Create a copy of a file with a new name - Undo/Redo - Up to 30 steps per file - Backups - Automatically or manually backup your files to app storage or a custom folder - Restore from backups - Restore your files from backups - Copy with results - Copy calculations with their results - Export - Share your calculations as a PNG image or a multi-page PDF - Dark/light theme - System, dark, or light mode support - Line numbers - Easy reference and navigation Perfect for: - Quick calculations with reusable values - Budget planning and financial calculations - Unit conversions and formulas - Educational purposes and learning - Any scenario where you need to document and reuse calculation values NerdCalci combines the simplicity of a calculator with the power of a text editor. As a capable alternative to text-based calculators like Numi, Calca, and Soulver, it is ideal for developers, students, accountants, and anyone who frequently works with numbers.

A beautifully designed, customizable calculator app with a soft, modern neumorphic style. Built in Flutter.. Features: - Dark Mode: Easy on the eyes with automatic light and dark themes. - Custom Themes: Choose the look that suits your style best. - Personalized Buttons: Adjust button shapes and styles the way you like. - Font Options: Pick a font you love for the perfect look. - Calculation History: Quickly review and recall your past calculations.

A simple and beautiful calculator for Android 📖 Features * Lightweight (APK ~2MB) * No unnecessary permissions * Dark, Light, Amoled and Material You theme * Scientific mode * History * Portrait and landscape orientation * Quick Settings Tile * More...

PariDroid is a native port of PARI/GP to Android. PARI/GP is a widely used computer algebra system designed for fast computations in number theory (factorizations, algebraic number theory, elliptic curves...), but also contains a large number of other useful functions to compute with mathematical entities such as matrices, polynomials, power series, algebraic numbers, etc., and a lot of transcendental functions.

Qalculate! - the ultimate multi-purpose calculator - is now finally available on Android! 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). Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation or interval arithmetic.

Very handy calculator, in Reverse Polish Notation style. Written in Kotlin. For every day use. Large digits with only the most used operators.

A simple, modern RPN calculator that uses RPN. Reverse Polish Notation is a system where the operators are entered _after_ the operands. For example, rather than 2 + 2, you would enter: 2 2 + The main benefit is a faster, more accurate interface.

The developer is currently on hiatus from the project. Questions and pull requests may not be looked at for some time. Are you interested in investing in real estate and want to rent out homes? Not sure how to determine if a property is a good investment? Rental Calc helps real estate investors determine if a potential property is worth buying and renting. Create a property entry, enter a few fields, and Rental Calc will compute what you need at closing, your projected cash flow, and various returns on your investment.

This is a very early version in development. Unlabeled buttons will be implemented in the future, and bugs may be frequent. If you experience issues or have feature requests, please file an issue (link below). Frustrated by the lack of free, open-source scientific calculators that feel like the ones I am used to, I decided to reverse-engineer my old calculator from school. With features like: - input of complex equations, - output as fractions as well as decimals, - result storage and reuse, - selection and editing of equations from input history, - and support for implicit multiplication (like 5π instead of 5*π), this calculator produces math that looks like the math on your paper. That makes it much more suitable for higher-level math in school and university—especially if you've grown accustomed to this kind of interface from a young age and just forgot your calculator at home. Some additional features include: - A well-established open-source math.js library as the math engine—so you’re not relying on some sketchy, hand-rolled math logic (just my sketchy hand-rolled input method 😛) - A familiar, intuitive design - 100% offline usability and fully open source - Written entirely in HTML, JS, and CSS, which means: + inherently cross-platform and also available as a website and Flatpak + easy for other web developers to contribute + admittedly a bit heavy for a calculator. If you're interested in helping make a lighter version (Flutter, Kotlin, etc.), you're very welcome!

SoulCalc is a notepad-style calculator that combines the simplicity of a basic calculator with the flexibility of a text editor. Features: - Multi-line calculations: Write multiple expressions, each on its own line - Named variables: Define variables like $price = 100 and use them in other lines - Line references: Reference previous results with $1, $2, etc. - Real-time evaluation: Results appear instantly as you type - Built-in calculator keyboard: Quick access to math operators - Percentage calculations: Use % for percentage operations (e.g., 100+10% = 110) - Power and square root: Support for exponents (^) and square root (sqrt) - Comments: Add notes with # prefix - Copy results: Tap any result to copy it to clipboard - Auto-save: Your calculations are automatically saved - Light and dark theme support - Built-in help guide Perfect for: - Quick everyday calculations - Shopping and budgeting - Unit conversions with formulas - Any calculation where you want to see your work SoulCalc is free, open source, and contains no ads or trackers.

Dead simple tip calculator that computes tip based on the subtotal, pre-tax. It's also my first app, so some things are missing that I don't know how to implement just yet.

Quickly calculate a ballistic solution for any conditions. Features: - Conveniently manage rifles, optics, and ammunition - Upload & calibrate custom SVG reticles - GPS & online weather integration - Fast ballistic solving: G1/G7 drag models, spin effects, coriolis effect - Themes: Light, Dark, OLED Black - Tablet & foldable support

Units is a powerful unit-aware calculator that can perform a variety of unit conversions and also doubles as a simple scientific calculator. It's inspired by GNU Units. This edition is a continuation of Steve Pomeroy's original app. Usage Anything that is shown within a box can be entered into Units. E.g. m³÷hr. Place the value and the unit you want to convert from in the "you have" box (e.g. 4.9inches) and the unit you wish to convert to in the "you want" box (e.g. cm). To enter units, either press the "unit" button and select from the list, or tap on the input box a second time and an on-screen keyboard should pop up. You can enter simple units, such as cm / centimeter or complex units, such as m^3÷hr. You can long-press the "unit" button to show a list of all the units. If you don't specify a "to" unit, it will provide a definition in base units. For a list of examples and more information, please see the built-in help or the Readme on Github.

Calculator, converter and more. Look for Calculator on your home screen after installing the app. Calculator • Home screen widget • Copy, paste, save and share expression results • Trigonometric functions • Fractional output • Optional Indian numbering system Unit converter • 601 units • Currency converter (uses internet) • Home screen widget • Favorite units • Organize unit groups • Smart search algorithm Date calculator • Add and subtract dates • Calculate difference • Create events in calendar Time converter • Add to favorites • Add labels to time zones Body mass index • Get instant and accurate results Permissions and Data? Visit: https://github.com/sadellie/unitto/security/ Try web: https://sadellie.github.com/unitto/app

Calculate VAT for any country in the world

Vanilla is a cute an elegant calculator app for Android!

If you receive vouchers (from, say, sodexo) which have a fixed value and you need to pay a certain amount, you may wonder how many vouchers you have to spend and how much tip you may be giving with an additional voucher. Features: * Enter price you need to pay * Select the maximum number of vouchers you carry * It shows how much you still have to pay * Or how much extra you'd give with an additional voucher

Scientific calculator for complex math expressions with support for graph drawing. In the first tab, user can write math expressions and get the results. A list of previous expressions is available and they can be retrieved, edited, supressed... The second tab shows graphs of functions that are selected in the first tab. The last tab shows a list of physic constants that can be send to letters used in math expressions.

WriteOn is a note-taking app designed with simplicity and usability at its core — perfect for students and everyday use. 🛠️ Key Features: • ☁️ Backup & Restore notes (offline & WebDAV supported) • 👁️ Screen protection (prevents screenshots & previews) • 🖋️ Markdown support for rich text formatting • 🎨 Customizable themes for light/dark comfort • 📶 Works both offline and online • 🔒 Privacy-respecting – no access to your personal data • 📝 Export notes to .txt format and more • 📷 Attach and view images inside notes • 📅 Built-in calendar for instant checking • 📌 Pin notes to your notification panel (requires notification permission) • 🌈 Visually calming and intuitive interface • 🧮 Built-in calculator for easy access • 🎓 Flashcard mode for studying and others This app is a fork of Easynotes. Updates and new features are driven by user feedbacks. With more improvements coming soon.

dahliaOS Calculator is a system app for dahliaOS and a basic arithmetic calculator. It supports the basic four operations, as well as pi, the number e, sin/cos/tan, and more.