Startup ideas

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  FirstSign AI

  Validate Ideas with AI-Powered User Feedback

  Startup idea validation

  Open
  12,474
  13
  5.0
  Released 10d ago

  Free + from $49
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  John Goodhew

  🙏 32 karma

  Oct 3, 2025

  I’m allergic to synthetic data, but I gave FirstSign a spin and… my calendar sent a thank-you note. Skipped the cold DMs and got surprisingly sharp interviews for early validation. Feels like cheating, but I’ll allow it ;)

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  Build Or Not

  Data-driven startup decisions that boost success rates.

  Startup idea validation

  Open
  377
  12
  5.0
  Released 1mo ago

  Free + from $20/mo
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  shoes feiyue

  🛠️ 3 tools 🙏 211 karma

  Aug 20, 2025

  As the founder of BuildOrNot.io, I’m excited to announce that our platform has just been launched. At this early stage, our most valuable asset is your feedback. I warmly invite you to try BuildOrNot.io and share your thoughts—both the strengths you find useful and the shortcomings we should improve. Your ratings and comments will directly help us refine the tool, enhance the user experience, and make the platform more valuable for every entrepreneur. Your voice matters, and I truly appreciate your support on this journey.

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  Product Lab

  AI-powered product discovery

  Startup ideas

  Open
  13,243
  183
  4.3
  Released 1y ago

  Free + from $12/mo
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  Artem Bukhinchenko

  🙏 32 karma

  Sep 9, 2024

  It has changed the way I do product discovery now

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