Hello,
I have gone through your requirement that you need application so it can read and write with NFC, for metro card.
Please share your details so can go through it and start according. I have 5+year of experience in all areas of developing app and website like restaurant, social media, dating, event, uber, gps tracking, handy, classified(buy & sell) and many more.
I built 100+ app successfully.
"Satisfaction, quality of work " is my first priority.
Awaiting for your response.
Thanks
Anamika