The Police Unit canteen system was maintained by manual and web based process. This system is helpful to use as Android app. Stock details in the canteen and users of the Canteen are all maintained by an authorized person Admin. User can use canteen facility using this app by getting authorized from Admin. Once user enroll them in our app, Admin will give access to use canteen by sending access message to their registered phone number and set amount limit for each users. Admin should add stock details and view stock details. Proper updation of reducing stock will be automatically updated to the admin Panel. And also admin can view the details of the items purchased by all users and can view the remaining balance amount for all users. Once user login into app, they can view list of products,, and can select items and add them into cart. There is quantity limitation for some items to purchase. Once user wish to buy items added in the cart, amount should be checked whether it satisfies the limit set by Admin, If not then some of items should be removed. Otherwise, user can buy all items.