PromKhai is a point-of-sale (POS) app for small retail stores, used by shop owners and cashiers to record sales and manage stock on an Android phone or tablet.
PromKhai is a point-of-sale (POS) app built for small retail shops — the kind of shop that used to rely on a cash register and a paper notebook. Shop owners and cashiers install PromKhai on an Android phone or tablet and use it every day to ring up customer sales, keep track of how much stock is left of each product, and manage the shop's product catalog (names, prices, categories).
The app runs entirely on that one device — there is no server or cloud backend behind it, and no company account is required to use it. Product, stock, and sales data is stored locally on the device, so the till keeps working even when the shop has no internet connection.
PromKhai offers an optional "Sign in with Google" option so a cashier can identify themselves inside the app. Signing in only reads your basic Google profile (name, email address, and profile picture) to display who is currently using the app. See our Privacy Policy for details on exactly what is accessed and how it's used.