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ChatDOC alternatives · AI Research

ChatDOC alternatives with a Windows app

The ChatDOC listing does not include a Windows app. 4 of the 49 other AI research tools in this directory list a Windows app.

ChatDOC is a paid product with a free trial, starting at $89.9 per 360 days (a 30-day plan is also sold). All of them are free or have a free plan.

4 tools · Listings checked up to Nov 12, 2026 · Where the facts come from

How each one differs from ChatDOC

  1. 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). ChatDOC starts at $89.9 per 360 days (a 30-day plan is also sold).
    • ChatPDF has a free plan. ChatDOC does not, though it has a free trial.
    • Only ChatPDF lists macOS, Windows, iOS and Android apps.
    • Only ChatDOC lists a browser extension.
    ChatPDF vs ChatDOCChatPDF pricing and details

  2. Liner

    AI search with cited answers, research agents and a writer

    • Liner starts at $14.99 per month, billed annually ($17.99 billed monthly). ChatDOC starts at $89.9 per 360 days (a 30-day plan is also sold).
    • Liner has a free plan. ChatDOC does not, though it has a free trial.
    • Only Liner lists macOS, Windows, iOS and Android apps.
    • Liner also covers AI search, AI agents, long-form writing and highlights.
    Liner 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. ChatDOC starts at $89.9 per 360 days (a 30-day plan is also sold).
    • Otio has a free plan. ChatDOC does not, though it has a free trial.
    • Only Otio lists macOS, Windows, Linux and iOS apps.
    • Otio also covers AI search, notes and AI agents.
    Otio pricing and details

  4. Zotero

    Free, open-source reference manager from a nonprofit

    • Zotero starts at $20 per year for 2 GB of file storage. ChatDOC starts at $89.9 per 360 days (a 30-day plan is also sold).
    • Zotero has a free plan. ChatDOC does not, though it has a free trial.
    • Only Zotero lists macOS, Windows, Linux, iOS and Android apps.
    • Only ChatDOC lists a web app.
    Zotero pricing and details

Common questions

Which ChatDOC alternatives have a Windows app?

ChatPDF, Liner, Otio and Zotero list a Windows app.

Does ChatDOC have a Windows app?

The ChatDOC listing does not include a Windows app. It lists Web and Browser extension.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. 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 ChatDOC: the alternatives its listing names first, then the tools that share the most features with it.