NFC Beam Android Extension

Hi there,

a client wants their product with an NFC chip to communicate with an Android app.
Haven't found a good extension in the Asset Store and I'm not really familiar in developing extensions.

I found this tutorial:
http://blog.twinsprite.com/2014/05/10/nfc-android-java-plugin-for-unity-3d.html

In this tutorial it is only mentioned how to read a tag but the app must read and write so I think the App needs to use "Android Beam". https://developer.android.com/intl/ru/guide/topics/connectivity/nfc/nfc.html#p2p

The NFC chip and the app should share text/plain information.

Every tip on how to get started would be very nice

Even if you tell me that it isn't possible!