Zotero is a free, open source tool for saving and organizing references and creating citations and bibliographies.
While the Zotero web library is optimized to allow you to access and edit your Zotero library on any tablet or mobile phone and the Zotero browser extension allows you to save items to your account, an official app for iOS is now available.
Learn more about using the app on the library's Zotero guide.
PaperShip is a free app that gives you access to your Mendeley or Zotero library on-the-go. Available for iOS.
An optional in-app purchase allows you to annotate the articles you save.
Mendeley Web allows you to access and organize a library of sources without the need to install any software.
The Web Importer browser extension allows you to add papers to your library from any major browser.
