As the app was still under development, we simulated its use by setting up a specialized data-collection ecosystem. After three successful pilots in France, Mexico, and Italy, we completed six additional large-scale collections in Europe, the United States, and Asia. For each one, we recruited 1,000 participants and collected millions of words while meeting the data specifications and demographic requirements. Each participant processed thousands of words in a real-life environment. At the same time, since we were working on a pre-release product, we set up secure areas and confidentiality protocols to prevent an information leak. Our ability to collect data rapidly and report accurately on different parameters was the key to enabling our client’s timely product release.