A powerful newsgroup client, you can experience the free version:
https://play.google.com/store/apps/details?id=net.piaohong.newsgroup
The paid version is more powerful than the free version of the function, and no advertising and get faster upgrades and support

Functions and features
Support multiple newsgroups server
Support SSL
Tree View (tree list)
Support yEnc decoding
Support filtering rules
Support Share
Support mobile data traffic restrictions
Support during the Light and Night theme
Supports synchronous (for offline reading)
Support for multiple attachments
Support to get pictures from the camera
Support a simple attachment photo editing
Support for multiple character encodings