
Verblex
Master all 200 English irregular verbs, the fun way
What it does
Most irregular-verb apps are cluttered with ads and missing the one thing you actually need mid-sentence: a dictionary. Verblex is the alternative — a clean, ad-free, offline app that teaches all 200 English irregular verbs through a Duolingo-style path with spaced repetition (SM-2), six practice modes, real audio + IPA pronunciation for every verb form, and a full searchable dictionary built right in. No ads, no login, no data collected — just install and start learning.
Does the same job
all alternatives →- IGIrregular German Verbs – a simple app, no ads or trackingApr 2026 · bacist.com · ▲6
I built this based on requirements from my wife, who has been teaching German at a university for over 25 years. She genuinely needed a tool like this for this exact topic and started using it in her teaching right away. The main idea was to make learning as comfortable and focused as possible. That’s why the app has: – no ads – no tracking – no subscriptions – A1–A2 verbs are available for free.


- VMVerb Master – A site for practising Spanish verbs2017 · andycloke.github.io · ▲124

- AJA Japanese learning app focused on efficient vocab/grammar acquisition2022 · lessons.nihongo-app.com · ▲161
Hey HN, it’s been 8 years since I posted on here about the launch of my Japanese dictionary app Nihongo [0] and I’m finally back with a new app: Nihongo Lessons! Think of Nihongo Lessons as the textbook to Nihongo’s dictionary. It’s an app for learning Japanese, specifically made for learners who are serious about becoming fluent, and want a guided set of content that will help them efficiently acquire vocabulary and grammar. The project came about when Adam Shapiro of Japanese Level Up (Jalup) [1] announced last April that he was shutting Jalup down. As a fan of Adam’s work I was bummed to…
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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:…
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Launched alongside, August 2026
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- 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