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Undermind alternatives · AI Research

Undermind alternatives with an iPhone and iPad app

The Undermind listing does not include an iPhone and iPad app. 8 of the 27 other AI research tools in this directory list an iPhone and iPad app.

Undermind has a free plan. Paid plans start at $16 per month, billed annually, at the academic rate ($60 for industry). All of them are free or have a free plan.

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

How each one differs from Undermind

  1. SciSpace

    AI research platform for literature review and reading papers

    • SciSpace starts at $12 per month, billed annually ($20 billed monthly). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only SciSpace lists an iOS app.
    • Only SciSpace lists a browser extension.
    SciSpace vs UndermindSciSpace pricing and details

  2. Anara

    AI research assistant that cites the exact source passage

    • Anara starts at $8 per seat / month, billed yearly ($10 billed monthly). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only Anara lists macOS and iOS apps.
    • Only Anara lists a browser extension.
    • Anara also covers web clipper.
    Anara pricing and details

  3. Otio

    AI research workspace for chatting across many sources

    • Otio starts at $7 per month (Lite), billed monthly or $84 per year. Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only Otio lists macOS, Windows, Linux and iOS apps.
    • Only Otio lists a browser extension.
    • Otio also covers notes.
    Otio pricing and details

  4. 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). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only ChatPDF lists macOS, Windows, iOS and Android apps.
    • Undermind also covers AI agents.
    ChatPDF pricing and details

  5. 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). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only R Discovery lists iOS and Android apps.
    • Only R Discovery lists a browser extension.
    • Undermind also covers AI agents.
    R Discovery pricing and details

  6. Liner

    AI search with cited answers, research agents and a writer

    • Liner starts at $14.99 per month, billed annually ($17.99 billed monthly). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only Liner lists macOS, Windows, iOS and Android apps.
    • Only Liner lists a browser extension.
    • Liner also covers long-form writing and highlights.
    Liner pricing and details

  7. AskYourPDF

    Chat with PDFs and other documents and get cited answers

    • AskYourPDF starts at $11.99 per month, billed yearly ($14.99 billed monthly). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only AskYourPDF lists iOS and Android apps.
    • Only AskYourPDF lists a browser extension.
    • Undermind also covers AI search and AI agents.
    AskYourPDF pricing and details

  8. alphaXiv

    arXiv reading and discovery site with an AI research assistant

    • alphaXiv starts at $8 per month (alphaXiv Go). Undermind starts at $16 per month, billed annually, at the academic rate ($60 for industry).
    • Only alphaXiv lists an iOS app.
    • Only alphaXiv lists a browser extension.
    • alphaXiv also covers highlights.
    alphaXiv pricing and details

Common questions

Which Undermind alternatives have an iPhone and iPad app?

SciSpace, Anara, Otio, ChatPDF, R Discovery, Liner, AskYourPDF and alphaXiv list an iPhone and iPad app.

Does Undermind have an iPhone and iPad app?

The Undermind listing does not include an iPhone and iPad app. It lists Web.

When was this checked?

Every listing on this page was checked on Oct 5, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Undermind: the alternatives its listing names first, then the tools that share the most features with it.