Inciteful vs SciSpace

Inciteful is a free web tool that helps researchers discover academic literature through citation networks. Paper Discovery builds a network around selected papers and surfaces important and similar papers, along with authors and institutions. Results can be filtered by keyword, distance, and year. Literature Connector maps citation paths between two papers in an interactive visualization, supporting interdisciplinary work and entry into unfamiliar research areas. Inciteful says its database covers more than 240 million academic papers and indexes more than 2 billion citations, using sources including OpenAlex, Semantic Scholar, Crossref, and OpenCitations. Researchers can import BibTeX files to seed a graph, provided entries include DOIs, then export results in BibTeX format or to Zotero, Mendeley, or another reference manager. Core tools are free with no stated usage limits. The maker says the codebase is fully open source. Graph Pruning is beta and may not remain supported or become permanent.

SciSpace is a platform for finding, analyzing, and writing about scientific literature. Its literature review tool searches more than 280 million articles and organizes concise findings in tables with customizable columns. Chat with PDF offers citation-backed answers, section-by-section summaries, explanations of highlighted passages, and related-paper recommendations. Writing tools include AI-assisted suggestions, paraphrasing in context, style improvements, and an editor supporting more than 75 languages. Users can import references from Zotero or EndNote, though the Zotero import flow excludes papers without a DOI. A Chrome extension explains selected text, math, and tables; its mobile app is for iOS and supports searching, summarizing, and exploring peer-reviewed journals. SciSpace says its repository has metadata for 200 million-plus papers and 50 million-plus open-access full-text PDFs. It lists extension, iOS, and web access. The free plan is free and includes 100 monthly credits; paid plans start at $20/mo. SciSpace says uploaded PDFs are private to the user and are not used to train its AI models.