
Description: Logstash is an open source data processing pipeline that ingests data from multiple sources, transforms it, and then sends it to a destination. It is used for collecting, parsing, and storing logs for future use.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Papertrail is a cloud-based log management service that aggregates and archives log data in real-time. It allows developers and IT teams to easily search, analyze, and set alerts on application and system logs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API