Sites and apps similar to Calcul.io include Microsoft Excel. It's paid, but SpeedCrunch and Google Sheets are free. Other options are Proton Sheets, Qalculate!, OpenCalc and CalcYou. Calculators like Calcul.io are a crowded field, with more than 50 alternatives for Android, Mac, Windows, iPhone and iPad.
Comprehensive spreadsheet tool offering advanced data management with features like pivot tables, data visualization, and customizable charts for professional use in creating detailed reports and analyses.
United States
End-to-end encrypted spreadsheets enabling secure business data management, real-time collaboration with access controls, data analysis with automatic functions and visual tools, integration with cloud storage, and cross-device workspace access for teams.
Switzerland
High-precision scientific calculator for Windows, macOS, and Linux, handling up to 50-digit calculations with complex numbers, units, constants, vectors, and matrices. It supports user-defined variables and functions, editable history, per-result formatting, and tabs.
Germany
EU
Cloud spreadsheet app featuring real-time editing, support for Excel and CSV import/export, chart building, formula functionality, integrated chat, access controls, cloud syncing, access via web and mobile platforms, scripting, embedding, templates, and Drive integration.
United States
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).
SwedenEU
Lightweight Android calculator app offering basic and scientific calculation, customizable themes such as Dark, Light, Amoled, and Material You, history tracking, minimal permissions, portrait and landscape orientation, no internet required, and quick launch.
FranceEU
Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.
GermanyEU
High precision scientific calculator with full support for physical units (web and terminal versions).
GermanyEU
Spreadsheets and data; an open-source, clean-room reimplementation of Microsoft Excel, rebuilt in pure Rust.
Calculator provides simple and advanced mathematical functions in a beautifully designed app.
United States
