
Description: Swap-bot is an online platform that facilitates setting up and managing postal mail swaps and exchanges. It allows users to create swap groups, post profiles and swap listings, get matched randomly or based on preferences, and track progress through the exchanges. It's a free service catering to niche hobby communities.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Postcrossing is an online project that allows its members to send and receive postcards from random people all over the world. It connects people across borders and cultures through physical mail.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API