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alphaXiv vs Scholar Inbox: catalog facts
alphaXiv	Scholar Inbox
Free The homepage lists no prices; signing up adds following and discussion.	Free Free to use.
Web, Browser extension	Web
Trending papers with summaries and discussion Follow specific authors and organizations	Personalized recommendations rather than a raw feed Daily coverage of arXiv, bioRxiv, medRxiv and ChemRxiv
Focused on arXiv papers Discussion features require an account	Limited to the preprint servers and proceedings it indexes Recommendations need time to learn your interests
Web application, Browser extension	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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