I do not collect any information from users. This extension can assist you in writing UI tests by capturing values of your form fields, but it does so only if you explicitly start capturing. No data of you is ever sent outside of this extension. You can manually export the UI tests as text however.
This extension is free and OpenSource (GPL v3), the source code is available here: https://github.com/XRM-OSS/D365-UI-Test-Designer