Essayist
Essayist is an academic writing app that combines a focused word processor with reference management and automatic document formatting. It is intended for students, researchers and professionals who want to spend less time adjusting citations and page layouts.
Lattics
Lattics is a card-based knowledge and writing app for research papers, reports and fiction. It connects small notes with larger documents so that collecting ideas and shaping a finished manuscript can happen in the same workspace.
Researchist
Researchist is an academic PDF reader for Mac, iPhone and iPad from Essayist Software. It connects paper reading, annotations and reference management.