
Description: Sellertour PayPal Fee Calculator is a free online tool that allows eBay and other online sellers to easily calculate the PayPal fees for a transaction. It supports calculating fees for multiple countries and currencies.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Integral Calculator is a free online tool to calculate definite and indefinite integrals. It can compute single, double, triple, improper, and contour integrals using various methods. The calculator allows integrating functions with parameters and provides step-by-step solution.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API