This is the best bibliographic app on any platform. I have used them all over 20 years. This is the one.

In terms of reviewing apps such as this - it is simple - a more powerful and usable bibliographic app does not exist.

Bookends is a bona fide bibliographic database that generates the reference output you need for your pubs. It integrates perfectly with MS Word and is fully adjustable to your punctuation requirements. Most journals are already formatted for you, but it is a snap to add your own format.

Internet search and integration is perfect - it is a pleasure to use this app.

I also recommend Sente, though this latter app has a different purpose - it will hunt and seek the literature you need to review in a fashion that suits your requirements

Last but not least Papers is a cool way to store your PDFs. It is great but still needs some tweaks.