
Description: EtherCalc is an open-source web-based spreadsheet software. It allows real-time collaboration on spreadsheets from multiple users similar to Google Sheets. It is fast, lightweight, easy to use, and works well for basic spreadsheet needs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Calc XLS is a free, open source spreadsheet software that can create, view, edit, and share XLS, XLSX, and ODS files. It has basic spreadsheet functions, graphing tools, and supports pivot tables for data analysis.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API