
systemInPain
Build and scale systems in an interactive simulator to learn system design.
@echo_muss · X
Learn system design Try
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Build and scale systems in an interactive simulator to learn system design.
@echo_muss · X
Learn system design Try

Learn to code and build projects through interactive games and challenges designed for the LLM era
@RahimNathwani · X
Not a direct answer but the guys at Exercism (non-profit that publishes really good and free programming language self-study courses) recently launched a separate site to teach junior programmers both vibe coding and software engineering fundamentals.

Record sentences and get detailed English pronunciation feedback with IPA, tempo, and pitch analysis.
@fuxksniper · X

Create surveys, quizzes, and interactive games with AI-powered insights in one platform.
@lemhamza · X

Upload PDFs or notes to generate AI-powered quizzes, flashcards, and spaced repetition study sessions.
u/Gloomy_Silver_1700 · Reddit
Solo-built app just passed a bigger competitor on Google Play visibility score https://preview.redd.it/cmy3haru6veh1.png?width=1510&format=png&auto=webp&s=6c9f05bd5d22a012f123e4c4f6f26d1a7c85c5e3 Sharing this because it's a small win but it's mine. I'm the solo dev behind skillably, a study app where you upload your own notes or PDFs and it turns them into quizzes and flashcards, adapting based on what you actually get wrong. No team, no funding, built around a day job.

Create and edit multimodal content with AI using a conversational canvas interface.
BananaCanvas AI — 前沿的创意工作区,结合了基于对话的 AI 交互和无限画布,用于多模态内容创作。

AI coding assistant offering multi-model chat, code generation, refactoring, and agent orchestration.
shreyans_assistiv · Product Hunt
AskCodi Orchestrate agents at scale while reducing cost

Turn your study notes into competitive quiz battles and get AI coaching on weak topics.
u/Due_Load6189 · Reddit
I built a study battle app and need honest feedback Hey everyone, I’m a student building StudyClash, an app that turns practice questions into competitive study battles. You can try a deck, answer questions, get a score, see what topics you’re weak in, and use an AI coach to understand mistakes. I’m not trying to sell anything right now — I just need honest feedback before I show it to more people. Main things I want feedback on: Is the app easy to understand? Does anything look b

Input a math problem to get AI-generated visual explanations for learning.
@laodaozzz · X
我也做了一个教小朋友学数学的工具叫easymath。

Generate personalized interactive micro-courses on any topic
fahimulhaq · HN
Show HN: Fenzo AI – Interactive Micro-courses on any topic

Track your learning progress and project development as a developer.
@Dev_code_04 · X

Diagnose your skill gaps and get a personalized AI learning path in your field.
u/safi1409 · Reddit
Instead of asking "what should I learn next?", I built a tool that diagnoses your actual gaps and tells you One pattern I keep seeing here (and had myself): you're learning a field - say backend development or ML - and at some point you don't know what you don't know. You've done tutorials, watched videos, maybe built some projects. But you can't tell if you actually have real understanding or just surface-level familiarity. I built a free tool called Cascade AI that tries to solve this.