A powerful and free nfc card simulator that simulates various types of access cards elevator cards part of the company (factory) card or meal card part of the school meal card some library library cards and other IC card. You can get pro version in "About" page which has no ad.

Prerequisites
1、The phone has NFC
2、The phone is already rooted (Why Card Emulator requires root privileges? Because to simulate a card the NFC Card Emulater neet to write the card id to the nfc configuration file but requires root privileges to write the nfc configuration file)

Instructions
1、Turn on NFC
2、Open the Card Emulator
3、Put the card on the back of the phone and after identification success enter the card name save the card
4、Clicking the card's simulate button and so on after the success of the simulation you can now use the phone to brush access control
5、When you brush access control make sure that the nfc and screen of phone are turn on

Supported phones
Xiaomi、HUAWEI、ONEPLUS、SONY、Samsung（s4、s5、note3）、google phone(Nexus and Pixel)、Meizu、LG、HTC、Nubia、Letv、Moto、Lenvo and more...

Unsupported phone
Samsung s6 s6e s7 s7e s8 s8 + and so on

Supported Watch
Huawei......

Supported card id
Card Emulator can add and simulate 4 bytes、7 bytes and 10 bytes card uid

Supported NFC chip model
NXP and Broadcom