ZotPad App for iOS
ZotPad is an iPad/iPhone client for Zotero reference management software. The purpose of ZotPad is to allow accessing Zotero libraries from mobile devices. The software provides read and write access to Zotero files stored on the Zotero server, WebDAV server, or Dropbox and supports adding notes and tags to your items.
ZotPad contains a basic file reader that can be used to open the most common file types and can send attachment files by email. Annotation workflow can be easily set up with third-party PDF annotating software.
This is a free app