Used by retailers worldwide, Open Shop POS turns your device into a point of sale system and allows you to conduct business from just about anywhere. It works easily and simply, so you don’t have to purchase extra equipment for it to work. Just download the app and start processing transactions. What kind of retailers is Open Shop POS great for? Fashion & apparel stores. Home & lifestyle (book stores & gift shops). Coffee shops Quick service food & drink stores. Sports & outdoor stores.