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Paper Digest vs Asta: catalog facts
Paper Digest	Asta
Freemium Can be tried without signing in; full pricing is not described in the research.	Free Offered by Ai2 as a research project; no paid plans are listed.
Web	Web
Literature review, question answering and claim verification in one place Search across papers, patents, grants and people	Large corpus of 108M+ abstracts and 12M+ full-text papers Built by Ai2, the institute behind Semantic Scholar
Hosted service only Pricing for full use is not clearly stated	Web only Little detail about features is available on the homepage
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.