Your membership to Grammarly, when you create an account, will allow you to use Grammarly on up to five different devices. This is actually going to be very helpful for you, especially when you need to edit your document using your phone from time to time.
For instance, you may type your document on your laptop first, but for last-minute changes or if you want to make sure that the document has been edited correctly, you can open Grammarly on your phone to double-check the document. Through Grammarly, you will now have the option always to have documents that will be polished and professional.