Booru viewer for Android with support for Gellbooru, Danbooru and Moebooru.

Features
Browse image and video posts from booru servers
Read comments for the post
Favorite post
Backup and restore
Saved searches to see newest posts you care about
Hide or mute rated posts
Download post
and more!
Supported booru engines:

Danbooru
Moebooru
Gelbooru