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alphaXiv alternatives

alphaXiv compared with 5 alternatives: Semantic Scholar, SciSpace, R Discovery, ResearchRabbit and ChatPDF.

alphaXiv has a free plan. Paid plans start at $8 per month (alphaXiv Go). All 5 alternatives are free or have a free plan.

5 tools · Listings checked up to Oct 9, 2026 · Where the facts come from

At a glance

ToolPriceFree planRuns on
alphaXivThis toolFree plan · from $8/moYesWeb, iOS, Browser extension
Semantic ScholarFreeFreeWeb, Browser extension
SciSpaceFree plan · from $12/moYesWeb, iOS, Browser extension
R DiscoveryFree plan · from $69/yrYesWeb, iOS, Android, Browser extension
ResearchRabbitFree plan · from $10/moYesWeb
ChatPDFFree plan · from $89.99/yrYesWeb, macOS, Windows, iOS, Android

How each one differs from alphaXiv

  1. Semantic Scholar

    Free AI-powered search engine for scientific literature

    • Semantic Scholar is free. alphaXiv starts at $8 per month (alphaXiv Go).
    • Only alphaXiv lists an iOS app.
    • Semantic Scholar also covers citations.
    • alphaXiv also covers chat assistant and highlights.

    Suits: Free literature search across all fields of science

    Semantic Scholar vs alphaXivSemantic Scholar pricing and details

  2. SciSpace

    AI research platform for literature review and reading papers

    • SciSpace starts at $12 per month, billed annually ($20 billed monthly). alphaXiv starts at $8 per month (alphaXiv Go).
    • SciSpace also covers AI agents and citations.
    • alphaXiv also covers highlights.

    Suits: Students and researchers who want search, reading and writing tools in one place

    SciSpace vs alphaXivSciSpace pricing and details

  3. R Discovery

    Paper discovery app with an AI assistant, PDF chat and audio

    • R Discovery starts at $69 per year, or $12 billed monthly (US prices). alphaXiv starts at $8 per month (alphaXiv Go).
    • Only R Discovery lists an Android app.
    • R Discovery also covers citations.
    • alphaXiv also covers highlights.

    Suits: Researchers who want a daily feed of new papers in their field

    R Discovery vs alphaXivR Discovery pricing and details

  4. ResearchRabbit

    Literature discovery tool that maps how papers connect

    • ResearchRabbit starts at $10 per month on the annual plan ($12.50 on the monthly plan). alphaXiv starts at $8 per month (alphaXiv Go).
    • Only alphaXiv lists an iOS app.
    • Only alphaXiv lists a browser extension.
    • ResearchRabbit also covers citations.
    • alphaXiv also covers chat assistant, AI search and highlights.

    Suits: Citation chasing from a few key papers at the start of a literature review

    ResearchRabbit vs alphaXivResearchRabbit pricing and details

  5. ChatPDF

    Ask questions about PDFs and get answers with citations

    • ChatPDF starts at $89.99 per year or $14.99 per month (US App Store in-app purchase). alphaXiv starts at $8 per month (alphaXiv Go).
    • Only ChatPDF lists macOS, Windows and Android apps.
    • Only alphaXiv lists a browser extension.
    • ChatPDF also covers citations.
    • alphaXiv also covers highlights.

    Suits: Students and researchers who want quick answers from a paper or textbook chapter

    ChatPDF vs alphaXivChatPDF pricing and details

Limits worth knowing in alphaXiv

  • The site has no public pricing page; plans and prices are shown on the Subscription/Usage page in account settings.
  • The free plan limits the assistant to preset models with strict usage limits; choosing any model needs alphaXiv Pro.
  • alphaXiv Go raises limits on open-source models only and does not include Pro-tier models.
  • There is an iPhone and iPad app and a Chrome extension; the site lists no Android or desktop app.
alphaXiv pricing and details

Common questions

What are the alternatives to alphaXiv?

The alternatives to alphaXiv in this directory are Semantic Scholar, SciSpace, R Discovery, ResearchRabbit and ChatPDF. Each one has a side-by-side comparison with alphaXiv.

Is there a free alternative to alphaXiv?

Yes. Semantic Scholar is free to use. SciSpace, R Discovery, ResearchRabbit and ChatPDF have a free plan alongside paid ones.

Which alphaXiv alternatives work on Windows?

The alphaXiv listing does not include a Windows app. ChatPDF lists one.

Which alphaXiv alternatives work on macOS?

The alphaXiv listing does not include a macOS app. ChatPDF lists one.

When were these prices checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Oct 9, 2026. Vendors change prices without notice, so confirm on their site before you buy.