Optimal Workshop is a platform for user research (UX research). It offers tools for card sorting, tree testing, first-click testing, surveys, prototype testing, interviews and usability testing, along with participant recruitment. Research and design teams use it to test websites and products. It is delivered as an online service (SaaS) and is not open source.
The provider, Optimal Workshop Limited, is a New Zealand company headquartered in Wellington, with subsidiaries in Australia and the United States. New Zealand is outside the EU and EFTA, so the vendor is based outside Europe. According to its Security Center, the service and data are hosted on Amazon Web Services in the United States. The privacy documentation also mentions that data may be held in locations including Germany, the United Kingdom, Japan, New Zealand and Australia. A data processing agreement with EU standard contractual clauses is available. For European organisations this means that participants' research data, such as recordings and responses, is processed outside the EU on the basis of those contractual safeguards.