Prototyping

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  FirstSign AI

  Validate Ideas with AI-Powered User Feedback

  Startup idea validation

  Open
  11,832
  13
  5.0
  Released 6d ago

  Free + from $49
  Share
  11,159 firstsign.ai
  

  John Goodhew

  🙏 27 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 ;)

  214 Reply Share Edit Delete Report
• 

  SuperCraft

  Design Physical Products with AI

  Industrial design

  Open
  36,349
  221
  3.8
  Released 1y ago

  Free + from $29.99/mo
  Share
  15,461 supercraft.ai
  

  Aathreya Shetty

  🙏 23 karma

  Jan 5, 2025

  "It’s like if Figma and ComfyUI had a baby." got me laughing. I am gonna use this thing.

  62 Reply Share Edit Delete Report
• 

  Product Lab

  AI-powered product discovery

  Startup ideas

  Open
  13,218
  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

  237 Reply Share Edit Delete Report
• 

  Prototyper

  Create apps at the speed of thought.

  Prototyping

  Open
  12,911
  56
  v1.0 released 1mo ago

  From $30
  Share
  9,792 www.getaprototype.com
• 

  Fastrak AI

  Prototype apps in minutes, not days.

  Prototypes

  Open
  240
  3
  Released 1y ago

  Free + from $30/mo
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• 

  Prototext

  Free AI-powered brainstorming and content management app

  Brainstorming

  Open
  3,711
  78
  3.0
  Released 2y ago

  100% Free
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  Artemy Krylov

  🙏 68 karma

  May 30, 2023

  This is a simple, private, free tool that helps me unload my thought stack to decompose and solve any creative tasks. I love to use this app as an alternative to the official ChatGPT to conveniently apply my frequent prompts to the results of my brainstorming.

  4814 Reply Share Edit Delete Report