Hi @DanielaSan thanks for your question! The Canvas Mobile Apps are the only Instructure supported apps to access your Canvas environment. For students in particular, logging into Canvas via the App should be a much more streamlined experience as opposed to logging in via a mobile browser window. There is a lot of useful functionality on the Student App as well-- from checking your To-Do list, to submitting assignments, and accessing your Inbox, it's great to be able to access Canvas from your mobile device.
For more detailed overview, I suggest checking out this video guide: Student Mobile App. You may also find these Mobile App guides helpful in answering your questions. Happy learning!
