
Description: Apache Pulsar is an open-source distributed pub-sub messaging system originally created by Yahoo and now under the Apache Software Foundation. It is horizontally scalable, provides low latency and durable storage for messages.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. SQS offers a reliable, highly scalable, hosted queue for storing messages in transit between computers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API