OpalCalc Alternatives

OpalCalc is described as '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' and is a Calculator in the education & reference category. There are more than 25 alternatives to OpalCalc for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and Android. The best alternative is SpeedCrunch, which is both free and Open Source. Other great apps like OpalCalc are Qalculate!, Numi, Insect and Soulver.

OpalCalc alternatives are mainly Calculators but may also be Note-taking Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of OpalCalc.

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OpalCalc

Freemium • Proprietary
Calculator
Windows

OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows...

Learn more about OpalCalc

SpeedCrunch
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Free • Open Source
Calculator
Mac
Windows
Linux
PortableApps.com
115 alternatives to SpeedCrunch
SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.
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SpeedCrunch Features
1. Syntax HighlightingSpeedCrunch supports syntax highlighting for various programming and markup languages.
2. PortableSpeedCrunch can be used from a USB stick or similar with no prior installation.
3. Live PreviewInstantly see what your files and documents look like as you create them.
4. Ad-freeSpeedCrunch doesn't contain any form of external advertising.
5. Support for ThemesYou can use themes and templates to change the look and feel of SpeedCrunch.
Variables
Persistent History
Input history
Activity history
Multiple languages
Inline editing
SpeedCrunch vs OpalCalc opinions
pros, cons and recent comments
Guest
Very, very similar to opal. For less strenuous calculations speed is better. For more complex calculations, opal, full version is better with a slightly higher learning curve.
Positive comment•
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Qalculate!
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Free • Open Source
Calculator
Mac
Windows
Linux
106 alternatives to Qalculate!
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).
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Qalculate! Features
1. Currency ConversionQalculate! lets you convert different currencies based on the latest exchange rates.
2. PortableQalculate! can be used from a USB stick or similar with no prior installation.
Unit converter
Graphing calculator
Persistent History
Exchange rates
Natural Language Processing
Variables
Periodic table
Reverse Polish notation (RPN)
Hexadecimal
Equation solving
Qalculate! vs OpalCalc opinions
pros, cons and recent comments
Guest
Very powerful yet not too hard to get . Opal has a more modern UI, but QualQ works fine.
Positive comment•
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Numi
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No
Freemium • Proprietary
Calculator
Mac
113 alternatives to Numi
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. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...
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Numi Features
1. Currency ConversionNumi lets you convert different currencies based on the latest exchange rates.
Side-by-Side View
Real-time translation
Natural Language Processing
Sits in the MenuBar
Data export/import
Support for Keyboard Shortcuts
Insect
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No
Free • Open Source
Calculator
Mac
Windows
Linux
Online
Self-Hosted
61 alternatives to Insect
High precision scientific calculator with full support for physical units (web and terminal versions).
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Insect Features
Web-Based
Console-based
Soulver
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No
Paid • Proprietary
Calculator
Mac
106 alternatives to Soulver
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.
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Soulver Features
1. Works OfflineSoulver can be used without the need to connect to the internet.
2. Currency ConversionSoulver lets you convert different currencies based on the latest exchange rates.
Side-by-Side View
Editable calculations
Natural Language Processing
NaSC
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No
Free • Open Source
Calculator
Linux
62 alternatives to NaSC
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. Then you can plug those answers in to future equations and if that answer changes, so does the equations its...
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NaSC Features
Minimalistic
Intuitive Interface
Natural Language Processing
Windows Calculator
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No
Free • Open Source
Calculator
Windows
116 alternatives to Windows Calculator
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.
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Windows Calculator Features
1. Currency ConversionWindows Calculator lets you convert different currencies based on the latest exchange rates.
2. Ad-freeWindows Calculator doesn't contain any form of external advertising.
Bundled with Windows
Parsify Desktop
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No
Freemium • Proprietary
Calculator
Mac
Windows
Linux
16 alternatives to Parsify Desktop
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:
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Parsify Desktop Features
1. Currency ConversionParsify Desktop lets you convert different currencies based on the latest exchange rates.
Unit converter
Electron based
Math Solver
Parsify Desktop vs OpalCalc opinions
pros, cons and recent comments
Sitino
Apps made with Electron should be banned. Something that could be 100k in C++ becomes a 100M javascript monster
Negative comment•
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GeoGebra Scientific Calculator
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No
Free • Open Source
Calculator
Online
Android
iPhone
Android Tablet
iPad
114 alternatives to GeoGebra Scientific Calculator
Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!
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GeoGebra Scientific Calculator Features
Math Solver
Numbr
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No
Free • Open Source
Calculator
Online
Chrome OS
10 alternatives to Numbr
Numbr is a currency calculator, a notepad that understands your calculation. You can use notes with numbers alongside each other. And all your numbers are instantly calculated as you type.
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Numbr Features
1. Currency ConversionNumbr lets you convert different currencies based on the latest exchange rates.
2. Works OfflineNumbr can be used without the need to connect to the internet.
Unit converter
Editable calculations
Document sharing
Side-by-Side View