Arc Tunes
One-tap rhythm game. Miss and the run ends.
What it does
Most mobile rhythm games are four-lane tap-tracks or licensed piano tiles. Arc Tunes is one tap: a needle races a ring, you hit the mark, miss and the run ends. Original music (no hit-song paywall), four story campaigns — 99 stages — Endless mode, combos, skins, and Game Center. No account. iPhone. Headphones recommended.
Download Arc Tunes: Rhythm Game by Justin Novikow on the App Store. See screenshots, ratings and reviews, user tips and more apps like Arc Tunes: Rhythm Game.
Music Developer Justin Novikow Language EN English Size 503.3 MB iPhone Four full music campaigns, Endless mode, and a needle that only forgives perfect timing. Tap the beat, chain combos, unlock skins—can you escape Earth? A glowing needle races the ring. Tap when it hits the mark. Miss and the run ends. Arc Tunes is a one-tap rhythm game. Original music, four story campaigns, Endless mode. Headphones recommended. EVERY TAP IS THE BEAT • One control: tap to snap the needle • Combos, Perfects, and Fever for clean runs • Haptics locked to the music • Miss? Watch a short ad to continue — or spend diamonds FOUR MUSIC CAMPAIGNS · 99 STAGES • Feel the Beat — the song is the level • Warp Gates —…from apps.apple.com
Does the same job
all alternatives →More dev tools this month
the category →



Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com


OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
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


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 · 16d ago · simedw.com