I built a service to discover rapidly growing startups, topics and apps
In plain words
Under the Radar is a discovery service that helps users find rapidly growing startups, topics, and apps. Launched in 2022, the platform identifies emerging companies and applications gaining traction in the market. It's designed for people interested in spotting new trends and innovations early, before they become mainstream. The service focuses on tracking growth momentum as its primary differentiator for surfacing noteworthy emerging products and businesses.
written from the facts on this page · September 2026
Does the same job
all alternatives →- IBI built a service to discover and monitor rapidly growing trends2020 · treendly.com · ▲343
- IWI wrote the book Building Mobile Apps at Scale2021 · mobileatscale.com · ▲357

- IBI built a web app to aggregate new startups and related discussions2016 · startupdigger.com · ▲7

- SAStartuplister – A startup directory listing service2014 · startuplister.com · ▲101
More life & fun this month
the category →- TL
Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 27d ago · everycube.alen.is


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 · 27d ago · baselashraf81.github.io
Launched alongside, March 2022
the whole month →- IM
Hi HN! I made many small web games in the past with Unity or Phaser. But this time I wanted to make something completely on my own. So I coded a basic game framework in plain JavaScript, and used it to make Almost Pong. This was a really fun project that taught me a lot about JavaScript, and I plan to make more minimalist games with this framework. Interesting fact: Almost Pong doesn't load any assets, all sprites and sounds are generated with code. Happy to answer questions, and please let me know if you have any feedback on the game. Thanks!
Dev tools · 2022 · lessmilk.com
- IM
Life & fun · 2022 · networksfromscratch.com
- HA
Paste the following into the console of any HN page - for annotated avatars on all HN comments. (self contained code) for(u of document.querySelectorAll('.hnuser'))for(u.prepend(c=document.createElement('canvas')),x=c.getContext('2d'),c.width=18,c.height=14,s=u.innerText,r=1,i=28+s.length;i--;i>>29>X*X/3+Y/2&&x.fillRect(6+2*X,2*Y,2,2)&x.fillRect(6-2*X,2*Y,2,2):r+=s.charCodeAt(i-28,x.fillStyle='#'+(r>>8&0xFFFFFF).toString(16)))r^=r>>17,r^=r>2
Dev tools · 2022


- AG
Life & fun · 2022 · backofyourhand.com