Zotero: Plugins & Mobile

The mobile version of the Zotero web library allows you to access and edit your Zotero library on your tablet or mobile phone.
Add by Identifier or Add File works best in the downloaded app.
You can also save items to your Zotero account using zotero.org/save.

Official apps are available for iOS and Android:

Zotero for Android is the best way to work with your Zotero library on an Android device

Zotero for iOS is the best way to work with your Zotero library on an iPad or iPhone.

An active community of Zotero users has developed a variety of plugins to provide enhancements, new features, and interfaces with other programs.