Why do I need to sign up to use the app? Particula Help Center November 08, 2021 19:07 You need to create an account in order to enjoy all the features of the app. You need to be connected to the internet in order to create an account. Related articles I cannot create an account How do I download the App? My Rubik's Connected won't charge or work at all. Can I use GoCube without its app? Does it cost money to download the App? Comments 0 comments Article is closed for comments.