For the convenience of new user, mindv creates a guest users. Users can directly start mindv from the www.mindv.com home page without registering an account, or directly input this url "http://www.mindv.net/" in browser to start MindV. In these situations, MindV runs as a guest account, and the user can create 15 new mind map files for testing. But because everyone can be a guest user, so if you want to create your own mind map file and keep it safe, you need register a free mindv account at www.mindv.com or directly in mindv. And if you want to use it's advanced features in the future, you can make subscription at www.mindv.com and upgrade your free mindv account to professional account.
Click "Account" menu item you can register a new free account, resend registration confirmation email, change user password, change user account, upgrade your account.