Hi Patricia thanks for posting in the Lucid Community! If you're working in Lucidspark collaborators don't need to create a Lucid account if you utilize the Guest Collaborator functionality. Please view the linked help center article for a full description of what features are available to Guest Collaborators and how they can access a Lucidspark board. At this time Guest Collaboration is not supported in Lucidchart. I hope this helps! Please let me know if you have any additional questions.