One-pos 小幫手是一個訊息中心 - 這個免費的應用程式可收pos軟件one-pos重要的通知,使店主/零售商知道他們的生意狀況。. Acting like a Messenger – this free App "OPMN" receives notifications from our sophisticated desktop POS software ONE-POS, enabling shop owners / retailers to know how their business is doing. These notifications are simple text messages.