Sondr—Turn cold traffic into leads

What it does

Sondr turns your ad traffic into ranked leads. Build a branded question quiz in 2 minutes, and every respondent lands in your dashboard with a 0–100 score — plus the arithmetic behind it. Free plan, live this today.

Sondr builds branded quizzes that score every respondent 0–100. Quiz-driven lead qualification for products that need explaining.

• 
  Convertlyio2023 · ▲140

  Create lead generation quiz funnels in seconds with AI

• 
  Quicklines2022 · ▲138

  Cold email personalized AI icebreakers to get more responses

• 
  InteractAI2024 · ▲110

  Quiz making & lead gen have gone from weeks to minutes

• 
  Hot Reach AI2023 · ▲95

  Personalized first lines for cold outreach using LinkedIn

• 
  Riley 2.02016 · ▲137

  Respond to real estate leads in under 2 mins, 24/7, via text

• 
  Mailshake 2.02021 · ▲164

  Send engaging cold outreach emails, on autopilot

• 
  AstraPixels▲267

  ​​A pixel-art solar system at its real current positions.​

  Growth · 29d ago · astrapixels.com

• 
  WorldMap.lol▲197

  Put your startup on the map. Literally.

  Growth · 13d ago · worldmap.lol

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

• 
  Hey Noah▲641

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

• 
  Clipto MCP▲640

  Let agents source clips from terabytes of your local video

  Work · 18d ago · clipto.com

• SA
  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

• 
  AdAnt AI▲608

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

• 
  I trained a 125M model to autocomplete piano on-device▲598

  I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.

  AI · 17d ago · simedw.com