@Tschili take a look at https://docs.pycom.io is full of examples. The bluetooth paring needs for you to create a server on Wipy, but usually you may want more than a simple paring.
About the:
Send data over the mobile phone to internet (webserver)
I don't think that this forum is the adequate for mobile apps questions, but if you mean communicating to Wipy using wifi, for sure you will find and example on the documentation.