
Description: OpenSearch is an open source search engine software project that is based on Elasticsearch and Apache 2.0 licensed. It provides RESTful search and analytics APIs suitable for building search applications.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Apache Solr is a popular, open source enterprise search platform built on Apache Lucene. It provides full-text search, hit highlighting, faceted search, dynamic clustering and database integration. Solr powers the search and navigation features of many large websites and applications.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API