https sniffer for android. What to choose from?

Question

Android

There is an android app.
I want to see the data transfer protocol. It's probably json.
Bundles
(Koplayer(vbox) + wifi proxy ) -> fiddler
(koplayer(vbox) + droidproxy) -> fiddler
don't help.
The program still drives part of the traffic drives directly. (this is how the traffic monitor shows)
In fiddler, from some of the requests, I see only a message about TUNNEL TO.
At the beginning there is some kind of friend on the certificates of some hosts. The checkboxes don't help.
Moreover, the first bundle perfectly drives the rest of the traffic of other applications through fiddler.

I haven't looked at the Java code yet, but some of the libraries in the package come as *.so.
What other options are there?

Thank you.

Answer 1

Wireshark + emulator + server key. Maybe you are lucky and some of the data will be sent openly.