[ Thanks to Dmitri
Popov for this link. ]
“This app is designed to help you manage your Piwigo gallery
from the convenience of your Android device. As such it doesn’t
allow you to browse albums and view photos (to do that you might
want to give the ReGalAndroid app a try). The app itself is pretty
straightforward in use. First off, you have to connect the app to
your Piwigo instance, which is done in the Settings section. The
Album view lets you select an existing album and change its
permissions, create new albums, and upload photos.”