# Calculators

Math is hard. Sometimes, even putting down expressions in numerical form is difficult, let alone solving or simplifying them. That’s where calculator applications such as SpeedCrunch and fxSolver come into play. Though the built-in calculator applications on your phone or computer may often suffice, sometimes the extra robust ability of the other software on this page can be a real lifesaver.

- SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including:
- Free • Open Source
- Mac
- Windows
- Linux
- PortableApps.com

- Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.
- Freemium • Proprietary
- Online
- Android
- iPhone
- Windows Phone
- iPad
- Kindle Fire

- Qalculate! is a multi-purpose cross-platform desktop 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).
- Online math solver, equation library, graphing calculator and science/engineering problem helper.
- Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks.
- A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.
- OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.
- Freemium • Proprietary
- Windows

- Calculator provides simple and advanced mathematical functions in a beautifully designed app.
- Soulver is a smart notepad with a built-in calculator. It gives instant answers to any calculations it finds in your text. It's a better way to work stuff out than with a traditional calculator, and a more lightweight tool for quick calculations than a spreadsheet.
- PhotoMath is the world's first camera calculator. Just point the camera towards the mathematical expression, and PhotoMath instantly displays a correct result.
- Freemium • Proprietary
- Android
- iPhone
- Windows Phone

- Wabbitemu - An accurate emulator/debugger for the TI-73, TI-81, TI-82, TI-83, TI-83+(SE), TI-84+(SE), TI-84+CSE, TI-85, and TI-86.
- Free • Open Source
- Mac
- Windows
- Android

- Calculator is an application that solves mathematical equations and is suitable as a default application in a GNOME Desktop environment.
- RealCalc Scientific Calculator
- Parsify Desktop is a notepad-based / text calculator, built with extendibility and privacy in mind. The app has been constantly updated since the initial launch in June 2020. Its most notable features include:
- Freemium • Proprietary
- Mac
- Windows
- Linux

- Its an app where you do maths like a normal person. It lets you type whatever you want and smartly figures out what is math and spits out an answer on the right pane.