Bookends vs Logically

Bookends is a reference-management app for students and professionals working with research. It collects, organizes, annotates, cites, syncs, shares, and publishes references across macOS, iOS, and a browser extension. The Mac app includes hundreds of searches for scholarly sources and institutional libraries, and can import references and PDFs. Its reader combines PDF annotations, notes, deep links, and searches across reference records and attached file contents. Bookends can scan manuscripts, replace temporary citations, and create in-text citations, footnotes, and bibliographies using built-in or CSL styles. Imports include EndNote XML, RIS, BibTeX, PubMed, and SenteXML, with integrations for Microsoft Word and other listed applications. Bookends Bridge connects browsers to the Mac app. MCP-capable AI assistants can search references, read PDFs, add notes and highlights, locate citations, and create bibliographies. Mac and iOS libraries sync through iCloud and can be shared with colleagues.

Logically is a research workspace for managing references, reviewing literature, annotating files, taking notes, and writing papers. Its AI assistant can search, summarize, and compare references across libraries, with inline citations and data sources. The reference manager accepts PDF, DOCX, TXT, MDOWN, EPUB, and PPTX files, along with URLs and DOIs. Users can import reference data from Zotero, Mendeley, and EndNote in RIS, BibTeX, or CFF formats. Semantic Scholar Mode draws on a database of 200 million peer-reviewed papers, and Logically says it supports more than 10,000 citation styles. Shared libraries, invitations, and collaborator permissions support group work. The free Cite Extension inserts citations and bibliographies from a Logically library into Microsoft Word; compatibility includes Word on the web, Word 2019 or later on Mac, and Word with Microsoft 365 on Mac or Windows. Logically runs as an extension, on macOS and Windows, and on the web. Free costs nothing and includes 100MB storage with daily AI-use limits. Unlimited is listed at $12 a year, billed at $12 per user/month yearly.