Hellosaurus

What it does

Hellosaurus is an interactive video platform that is reimagining screen time for families. Top kids media creators and YouTube stars are using the Hellosaurus proprietary tools to make participatory shows for kids ages 2-8, streaming on the Hellosaurus iOS app.

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  The Wiggles + YOU2021 · ▲89

  The Wiggles’s first interactive series, only on Hellosaurus

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  Kidovo2023 · ▲106

  Interactive videos to make kids fall in love with learning

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  kiddZtube2017 · ▲78

  App that augments kids videos with educational quizzes

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  Muky2024 · ▲200

  Music for kids, managed by parents

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  Netflix PlaygroundApr 2026 · ▲88

  A world for kids to explore along their favorite characters

• AI
  An iPad app to teach kids how to program2011 · ▲57

  This app is a graphical programming environment for kids to learn coding by creating animations. Although we released it to the app store it's still more of a beta version and we would love to solicit feedback from HNers with iPads. To me, programming is something that kids could really enjoy but the obstacles in their way (getting a programming environment, publishing their code, learning syntax) make the barriers to entry unnecessarily high. We're hoping this will be a good first step in overcoming some of that. http://itunes.apple.com/us/app/daisy-the-dinosaur/id490514278?ls=1&mt=8…

• TL
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  Photosynthesis fires two of your iPhone

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  SoloUno▲310

  Take control of hair pulling, nail biting & skin picking

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  Scroll through all 43252003274489856000 Rubik's Cube states▲295

  Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

  Life & fun · 26d ago · everycube.alen.is

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  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

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  Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

  Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

  Life & fun · 26d ago · baselashraf81.github.io

• 
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  Pre-built wizard for configuring Single Sign-On (SSO/SAML)

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  PFPMaker▲1,027

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  Screenity▲878

  The most powerful screen recorder for Chrome

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  Notion Timeline▲778

  Plot all your projects chronologically

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• IR
  I Rebuilt MySpace from 2007▲726

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