
Description: Ghost DB is an open-source database platform optimized for managing large volumes of time-series data. It is horizontally scalable, high performance, and has a query engine and visualization tools designed specifically for handling time-series data.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: LedisDB is a high performance NoSQL database that supports data structures such as strings, hashes, lists, sets and sorted sets. It is written in C and aims to provide Redis-compatible interfaces with better performance and disk persistence.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API