Software Alternatives, Accelerators & Startups


A powerful document manager for Mac, Windows, and Linux for managing web content, books, and notes and supports tagging, annotation, highlighting and keeps track of your reading progress.

POLAR Alternatives

The best POLAR alternatives based on verified products, community votes, reviews and other factors.
Latest update:

  1. 11

    Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

    Open Source

  2. 17

    Instapaper is a simple tool to save web pages for reading later.

  3. Managing contracts just got easier with CobbleStone!

    Try for free freemium $59.0 / Monthly (Unlimited contract storage)

    Try for free
  4. 15

    This application calculates the fertile days according to Knaus-Ogino.

  5. 15

    When you find something you want to view later, put it in Pocket.

  6. Turn your smartphone into a Polaroid

  7. Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

  8. Optimize websites for reading: font, contrast, night mode

  9. Learn to read 3x faster

  10. Turn your smartphone photos into polaroids

  11. Ebook manager, viewer & converter

    Open Source

  12. Read faster, one word at a time

  13. Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.

  14. The simple way to save & annotate web pages and PDFs, compare different concepts across the literature, organize your bibliography and generate citations.

    freemium $1.25 / Monthly (2GB Storage, 10 Projects)

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