clickworker GmbH is a crowdsourcing platform that operates on a fee-based model, leveraging a large pool of registered internet users, known as Clickworkers, to manage extensive business processes. The platform breaks down tasks from companies into microjobs, allowing Clickworkers to earn money by completing these online tasks. With a focus on flexibility, users can choose their working hours, location, and workload, making it an accessible option for individuals looking to earn income through various projects, including app testing for iOS and Android devices.