
Description: Stackprint is a PDF editor and converter tool that allows users to edit, annotate, sign, and convert PDF files. It has features for merging PDFs, adding text, images and shapes, digital signatures, password protection, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: RestDB.io is a fast and simple NoSQL cloud database service for serverless applications. It allows storing and querying document-oriented data via a RESTful API, with free and paid tiers available.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API