Launches: online businesses launched recently
A daily feed of newly launched SaaS, apps, marketplaces, online stores and content businesses, filtered by business model and category, so you can see what is already being built before you build it.
Cadence
Music theory and ear training app for intermediate guitarists.
Learn German with Games
Game-based German language learning platform
Three Emojis
Daily word game designed for language learners
Debugging TypeScript
Book about debugging TypeScript applications in beta.
AlgoDrill
Interactive drills with active recall for LeetCode algorithm patterns.
Lingoku
Browser extension replacing English words with Japanese vocabulary.
GeneGuessr
Daily biology puzzle game where you guess gene names from protein structures
IC to Manager Simulator
Text-based branching narrative simulator for engineers moving into management.
Rocket Simulator
Educational simulation for exploring rocket launches and orbital mechanics.
Core MBA
Text-based business simulator for learning through interactive scenarios.
ArtisanForge
Learn PHP and Laravel through gamified RPG-style coding challenges.
Musical Interval Trainer
Interactive tool to learn musical intervals
lairner
Language learning app using active conversation methods
Socratic AI
AI tutor that guides students through problems instead of giving answers.
Technical History of Lisp
Technical history book on the Lisp programming language.
Now I Get It
Convert scientific papers into interactive webpages for easier understanding
Yare
Competitive 1v1 coding game with quick matches
Audiobooks for Learning
Free synchronized audiobooks and text for language learning
Algorithms & Data Structures
Free comprehensive TypeScript book covering algorithms and data structures.
Fatal Core Dump
Learn debugging through an interactive murder mystery game with GDB.
Arabic Learning App
Learn Arabic using spaced repetition and comprehensible input methods.
Refinery Simulator
Educational game explaining oil refinery operations to non-experts.
PeriodicTableOfElements.org
Interactive periodic table of chemical elements
FSI German Course App
Web app for learning FSI German course with audio
Ithihāsas
Interactive character explorer for Hindu epics
How LLMs Work
Interactive visual guide to understanding large language models
AgentSwarms
Free hands-on playground to learn agentic AI with no setup required
Startup Equity Adventure Game
Gamified learning experience about startup equity mechanics
Matchstick Puzzle Builder
Create and solve matchstick puzzles interactively
Daily Quiz
Hand-crafted daily quiz for learning and challenge
Parrot
Web app for recording audio clips and practice
Brainio
Markdown notepad that converts notes to mind maps
Space CLI
CLI tool to create AI-powered flashcards offline
Professor Goose
AI study partner using active recall to improve retention
Scale Learning Tool
Interactive tool for learning music scales, chords, and fingerings
Language Flashcards
Create Anki cards and practice shadowing from native language audio
Decomp Academy
Learn to decompile GameCube games into matching C code
Rebuild Classics
Learn by rebuilding Redis, Git and databases from scratch
Scala Tutorials
Interactive browser-based lessons for learning Scala 3.
Relativistic Black Hole
Physically accurate black hole visualization in your browser.
VimGolf.ai
Learn Vim through progressive interactive game levels
ChipBuilder
Game-based learning for computer architecture fundamentals
Learn Flags Quiz
Quiz game to learn world flags.
SubSmith
Turn videos into language-learning study material automatically
Academa
AI-generated long-form STEM lecture videos compiled like code
Newton's Orchard
Browser physics playground for space and gravity simulation
Interactive Tree of Life
Explore taxonomic and evolutionary trees with 41 visual properties
Interview Prep Alternative
Free interview preparation tool for job candidates.
Listings are collected from public launch sites and classified by keyword; models and categories are corrected by an editor over time. Links go to the business itself; we have no relationship with any of them.