Software Alternatives & Reviews


A spreadsheet for things that aren’t certain.

Guesstimate Alternatives

Guesstimate alternatives based on verified products, community votes, reviews and similar products.

  1. Microsoft Office Excel is a commercial spreadsheet application.

  2. GhostProject is the industry leading data breach search engine. We have over 15 billion records and 7,200 data breaches

    Open Source paid Free Trial $30.0 / Monthly

  3. Seamless project management and collaboration for your team.

    Visit website Open Source $12.0 / Monthly (Per user)

  4. Synchronizing, online-based word processor, part of Google Drive.

  5. The industry leading database lookup.

  6. LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.

  7. DeHashed is the largest & fastest data breach search engine.

  8. Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.

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