Bluetooth and mobile application

Hello!

I am now about to start developing a mobile application which will receive
data from a bluetooth device.
I have set up Apache Flex SDK 4.13 and was wondering if anyone has any
experience in which libraries / 3rd party frameworks to use to accomplish
this ?

This application will be run on both iOS and Android eventually. Do I have
to write an ANE or is there any support for bluetooth in the SDK.

Thank you in advance.

Kind regards
Bjorn