Yes, definitely, you can go to the internet search bar of your Mobile and enter the address correctly in the search bar or address bar and open the login page of Sainsbury. Here you have to follow the above-mentioned login procedure and get proper access to the login page of the company. However, make sure of one fact before accessing the page from your Mobile. You need to have a stable and robust internet connection as this page is significant and downloads a lot of additional data to check-in.