The retail sales industry has undergone some noticeable transition in the array of payment methods over the years. It is imperative that an innovative payment solution is introduced to replace an cashier checkout system especially when there is growing demand for it. Assuredly, the addition of a mobile self-checkout application in industry will be more prominent in the next few years. The aim is to develop a mobile self-checkout application for a retail store of a client. Objective - Develop a Mobile application having a barcode scanner facility, it will be used to scan the barcode given in product and add it to the cart. Make the payment with multiple payments methods easily with app itself. Once payment is done it give alert or message to store owner Apart from this app will access current location of store and give the products details according to that particular store only. Application Domain - Through this application we can easy people’s life by not wasting their time to go through the cashier checkout point, and the product review are also there in the application. There will be a great impact of this application as It helps in a great measure cut off the long line at the cashier checkout points which can be frustrating at times for both customers and the cashier.