Optimal Workshop is a platform where testers earn by joining research studies. It is a user research platform used by teams to test websites, apps, and designs through usability testing, tree testing, card sorting, first-click testing, and surveys, and its participant recruitment finds real people to take part in those studies.
It suits anyone who is happy to share their honest reactions while using a website or app and answering questions about what they see. Participants take part in studies and give feedback that helps teams build products people can actually use.
To start, visit the official site and look for the participant or recruitment path to join a study, then follow the instructions on the official site. Income is never guaranteed.