Let's keep this short and sweet...
No personal information is collected or shared with third parties. Cookieless website analytics are collected only for the purpose of tracking website performance, not individual visitor tracking.
Your icon files are stored for 28 days so you have time to refine and share your project. After that, files are permanently deleted.
Your icon project is publicly accessible at a unique, unguessable URL. Anyone who has the URL can view and edit the project.