You can download the free Papers app for iPhone/iPad here.
If you have a URL of a publication that you would like to include in your Papers library, you can create a new paper from the URL in Papers 3 for iOS.
Copy the URL
Tap on the arrow icon in the main library screen.
- Tap 'Create new paper from URL'.
- The URL is automatically pasted.
- Tap Go and the web page is loaded within Papers.
- Tap 'Import' to import the publication, including all the available metadata to your library. If you have access to the full text PDF, the PDF is also downloaded. Once the PDF download has finished, the PDF is automatically opened in the Reader.