
Description: Symbian is a discontinued mobile operating system that was used in Nokia smartphones in the early 2000s. It was one of the early operating systems for smartphones but eventually lost market share to iOS and Android.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tizen is an open source operating system based on Linux and supported by the Linux Foundation. It is designed for a wide range of devices including smartphones, tablets, smart TVs, wearables and other IoT devices.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API