
Description: AppPerfect Load Test is a load and performance testing tool for web and mobile applications. It allows you to simulate hundreds or thousands of concurrent users to test application performance and behavior under load. Useful for capacity planning, scalability testing, and identifying bottlenecks.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Blitz.io is a load testing tool that allows users to simulate high traffic website scenarios in order to stress test the performance and stability of web applications. It offers easy to configure load tests that can scale up to millions of concurrent connections.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API