Cost / License
- Free
- Open Source (GPL-3.0)
Application type
Platforms
- Android
- Android Tablet
- F-Droid
- Linux
- Flathub
- Flatpak
- Online



NumberHub is described as 'Calculator, converter and so much more!' and is a Calculator in the education & reference category. There are more than 50 alternatives to NumberHub for a variety of platforms, including Android, Mac, Linux, iPhone and Web-based apps. The best NumberHub alternative is SpeedCrunch, which is both free and Open Source. Other great apps like NumberHub are Fossify Calculator, Qalculate!, OpenCalc and NerdCalci.



Cuneo is a simple and straightforward app that lets you calculate and convert anything you might encounter in your daily life. Being designed like a widget, Cuneo gets out of the way and is best used floating over a maximized window so you can focus on your actual tasks and not...




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.




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

A calculator with syntax highlighting that supports user-defined variables and functions, math-like syntax, and some more advanced operations such as derivation and integration (estimate), and complex numbers.



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.




NoteCalc is a handy calculator trying to bring the advantages of Soulver to the web.

CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate intermediate results and subsequently correct or change all numbers and operations.




A Simple but elegant Calculator app made with Flutter using Google's Material Design with Currency (Exchange Rate) and Unit Converter.




Calculator is a basic calculator application made by Apple Inc. and bundled with its macOS, iOS, and watchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and...




handyCalc is a powerful calculator with automatic suggestion and solving which makes it easier to learn and use.




A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:
