PaiDui provides cloud calling service, so that after you receive the queuing number, you will know the store's queuing status through your mobile phone anytime and anywhere, avoiding wasting time in the queue and this will make life more convenient. Features 1. No need for registration, easy to operate 2. QR Code scanning, easy to add stores 3. Display relevant information about the stores 4. Support push notification, receive store update notification at any time PaiDui Business https://play