Yes, it can be a tad clunky and the mobile app for a long time was just a catalog. However, their new iOS app [1] is awesome. The ability to read and highlight

Yes, it can be a tad clunky and the mobile app for a long time was just a catalog. However, their new iOS app [1] is awesome. The ability to read and highlight right in the app is what I have been wanting for years. I had previously been using the ZotFile [2] plugin to achieve something similar previously. ZotFile is also very powerful, I only used a subset of features. [1] https://www.zotero.org/support/ios https://www.zotero.org/support/ios [2] http://zotfile.com/ http://zotfile.com/