A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:
Platforms
- Mac
- Windows
- Linux
OpalCalc Alternatives
Apps similar to OpalCalc include SpeedCrunch, which is free and open source. Other options are Qalculate!, Numara Calculator, Numbat and Qaltex. Calculators like OpalCalc are a crowded field, with more than 50 alternatives for Windows, Linux, Mac, the web and Android.
Alternatives list
Cost / License
- Free
- Open Source (GPL-2.0)
Application type
Platforms
- Linux
- Flathub
- KDE
Germany
EU
Do you really need your calculator's on-screen number pad? (You know, the virtual keyboard?)
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Windows
+3
Free scientific calculator which saves you time and frustration by providing unique easy to use tools.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Windows
- Android
+2
CrossCalc is day to day Scientific Calculator that can be used on all your devices. It respects your privacy and does not show any ads.
Cost / License
- Free
- Proprietary (Apache-2.0)
Application type
Platforms
- Mac
- Windows
- Android
- iPhone
- Android Tablet
- iPad
India
+1
Frink is a practical calculating tool and programming language designed to make physical calculations simple, to help ensure that answers come out right, and to make a tool that's really useful in the real world.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Windows
- Linux
- Android
- Java
CalcNote is a notepad calculator designed for smartphones. You can immediately obtain calculation results as soon as you've added any calculations on a line.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Android
Multi Sum Calculator is a portable tool that calculates the sum of multiple values!
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Windows
+1
Calculator Plus is a nice addition to hundreds of Calculator apps but with unique idea and innovative and user friendly designed buttons.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Android
A calculator written in C#.NET 3.5 that aims to be simple and usable. Future plans include functionality above and beyond that of the standard windows calculator. (Requires the .NET 3.5 framework)
Cost / License
- Free
- Proprietary
Application type
Platforms
- Windows
Multi Share Calculator is a portable tool that allows anything to be shared proportionally!
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Windows
For jotting down quick calculations. Mix free form text with calculations and see the results appear in the right hand margin as you type.
Cost / License
- Free
- Open Source
Application type
Platforms
- Online
United Kingdom
