Top 6 Open-Source Alternatives to OpenCalc

Product categories

Advanced Calculator Calculator Education Education & Reference Engineering Calculator Knowledge Search Knowledge Search Engine Learning Tools Online Services Text Calculator Tool

Summary

The top open-source alternatives to OpenCalc are Qalculate!, Numi App, and Insect. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Qalculate! Landing Page
1

Qalculate!

Qalculate! is a multiplatform multi-purpose desktop calculator.
Pricing:
- Open Source
#Calculator #Advanced Calculator #Engineering Calculator 31 social mentions
Numi App Landing Page
2

Numi App

Numi is a beautiful text calculator for Mac.
Pricing:
- Open Source
#Calculator #Advanced Calculator #Text Calculator 29 social mentions
Insect Landing Page
3

Insect

High precision scientific calculator with full support for physical units.
Pricing:
- Open Source
#Calculator #Advanced Calculator #Engineering Calculator 9 social mentions
Parsify Desktop Landing Page
4

Parsify Desktop

Extendable calculator for the 21st century ⚡
Pricing:
- Open Source
#Calculator #Advanced Calculator #Online Services 1 social mentions
Socratic Landing Page
5

Socratic

Learn and help others learn
Pricing:
- Open Source
#Education #Knowledge Search #Learning Tools
kalker.xyz
6

kalker

Kalker is a calculator that supports user-defined variables, functions, ambiguous syntax, differentiation and integration. It runs on Windows, macOS, Linux, Android, and in web browsers (with WebAssembly).
Pricing:
- Open Source
#Calculator #Advanced Calculator #Knowledge Search