Hissab is a simple and intuitive calculator, unit-convertor and productivity application.




Soulver is described as 'Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?' and is a Calculator in the education & reference category. There are more than 100 alternatives to Soulver for a variety of platforms, including Windows, Web-based, Mac, Android and iPhone apps. The best Soulver alternative is Wolfram Alpha, which is free. Other great apps like Soulver are SpeedCrunch, Qalculate!, Mathematica and Hurmet.
Hissab is a simple and intuitive calculator, unit-convertor and productivity application.




Introducing Best Loan Calculator, using methods trusted by financial professionals for years. It’s as easy to use as a regular calculator and helps with auto loans, mortgages, and other financing.




A text calculator for natural language expressions, variables & unit conversions, with a vim-style TUI. Inspired by Numi.


NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.




Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, break-even point, etc. It's very user-friendly, flexible and usable on web, mobile and as an embeddable web widget.







Ever wanted to work something out, but your default calculator isn't powerful enough, and it's not worth creating a spreadsheet for?




Calcul.io offers realtime calculator with notepad like interface and advanced features like unit conversions, currency rates or date time math.

Calculator with percentages, powers and functions. History with comments that is synced across all your devices. Cursor for editing anywhere. Simple interface with dark and light themes.




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.



Calculist is an open source application that facilitates effective thinking. Write down your thoughts, ideas, and data in the form of lists. Focus your attention by zooming in to a specific list, and zoom out to see the broader context.
