Colandr vs Scholarcy

Colandr is a free web platform for evidence reviews and other document reviews and syntheses. Machine learning ranks citations by relevance to help screen titles and abstracts, while natural language processing classifies included documents into user-defined categories and assists full-text data extraction. Reviewers retain the final inclusion, exclusion, and classification decisions, and teams can collaborate and cross-check work. Citation files can be imported in TXT, RIS, or BIB formats, with a 40 MB limit per import, and screening decisions and extracted data can be exported as CSV. Colandr does not connect directly to citation databases; users export citations elsewhere, although the platform can help create Boolean search strings. Full-text papers must be found and imported individually, with no mass-upload feature. Relevance rankings update after every 10 screened citations, and metadata suggestions begin after 50 hand-coded extractions. Colandr describes itself as open-source and open-access.

Scholarcy turns research material into interactive summary flashcards that highlight key information and provide context. It accepts research papers, PDFs, book chapters, online articles, plain text and YouTube videos. Users can add content by uploading or dropping files, entering a webpage URL, pasting text or using a browser extension. Enhanced summaries can be tailored to reading styles such as School level, General reader, Bulleted list, Undergrad level, One liner and Researcher. Research tools include cited-work findings, article prompts and questions, a Research Quality Indicator and comparisons with related research. Scholarcy imports directly from Zotero and exports referenced summaries to Markdown for tools including Roam, Obsidian and Notion. Extensions are offered for Chrome, Edge and Firefox; Safari is listed as coming soon. The free plan costs nothing and allows 10 summaries, with flashcards exported one at a time. Scanned PDFs without extractable text are unsupported unless OCR is run first, and URLs behind paywalls may not import. Scholarcy says customer data is encrypted at rest and in transit.