Small apps for learning traditional games, and some toys.
Learn riichi or Chinese official mahjong, play the tractor card game, draw spirographs, or try a few AI experiments. Most are free.
Made by Kou Xing, writing software since 2006.
Learn Shogi
Learn shogi (Japanese chess) in English from zero: rules, drops & mate puzzles
Always wanted to learn shogi — Japanese chess — but every app is in Japanese, or assumes you already know the rules? Learn Shogi teaches you the game in English, from your very first move.
Chinese Checkers Dojo
Learn the rules of Chinese checkers, then finish endgames in the fewest moves.
Chinese Checkers Dojo teaches the rules of Chinese checkers, then teaches you to bring every piece home in the fewest moves. Did that bot's long jump just break the rules? Can a piece stop in a side point? Apps, boxed sets and families often play different rules. This app says which rule is played where, then scores your endgames against the proven minimum.
Backgammon Dojo: Trainer & AI
Bad dice or bad moves? Learn backgammon offline against an AI that counts both
Backgammon Dojo is for players who want to get better, not just play another game. Play full games against an AI that runs on your phone, with the doubling cube in every game. When the game ends you see the result, how much of it came from the dice and how much from your decisions, and a performance rating (PR) for how well you played. Dice are drawn when rolled; the AI never sees them.
MCR Dojo
Learn 81-fan Chinese Official Mahjong scoring with bite-sized quizzes.
MCR Dojo — learn Chinese Official Mahjong (国标麻将) scoring the way you actually remember it: by solving small, focused quizzes with instant feedback.
Shengji: Tractor Card Game
Chinese trick-taking card game with AI opponents
Shengji (升级, meaning 'Upgrade'), also known as Tractor (拖拉机), is a Chinese trick-taking card game. This version plays the full three-deck game, or a shorter two-deck (80-point) mode, offline with three AI players, your partner and two opponents, who track voids, protect their partner and play score cards strategically. No ads, no account.
Riichi Dojo
Gamified Japanese Mahjong learning app
日麻道场 - A gamified Japanese Mahjong learning app with quiz-based learning covering yaku, furiten, scoring, and gameplay strategy. Features interactive tile displays with proper mahjong notation and progress tracking.
Smart Jigsaw
Turn your photos or HD pictures into jigsaw puzzles, with a smart piece picker
Smart Jigsaw turns any picture into a jigsaw puzzle. Play one of your own photos, one of 100 classic paintings that come with the app, or the Picture of the Day, a different painting every day.
Zuo Zhuan AI Reader
The full Zuo Zhuan 左傳 offline: double-tap any sentence for its modern Chinese
Read the Zuo Zhuan (左傳, Chunqiu Zuoshi Zhuan) in the original: all 255 years, from Duke Yin's first year (722 BCE) to Duke Ai's twenty-seventh (468 BCE), with the Spring and Autumn Annals (春秋) entries and the Zuo narrative side by side in the text.
Les Misérables: Guided Edition
The whole novel, with a story chart and a guide that never spoil what's ahead.
Victor Hugo's Les Misérables is one of the most loved novels ever written, and one of the most often put down halfway. This edition is made to carry you through all of it.
Pyramid Reader
Read the conclusion first, then open only the levels you need: claims, evidence, the sentence on the page.
Pyramid Reader turns the article you are reading into a summary in levels, in a Chrome side panel. The name is the pyramid principle: the answer first, then the levels that support it.
Beat Check
Drum timing: your real BPM, and how steady you held it, to the millisecond.
You think you're playing in time. Beat Check tells you whether you actually are. Put your own metronome click in your headphones and play along. It times every note to within a few milliseconds, then gives you one plain-English answer: the tempo you actually held, and how steady you held it. Built for drummers and percussionists. No account, no ads, and your recordings never leave your phone.
Chinese Stroke Order: Hanzi
Animated stroke order for any Chinese character - voice search, pinyin & meaning
Just say the character out loud and watch it write itself. Chinese Stroke Order animates the correct stroke order of any Chinese character, so you learn to write hanzi the right way - one stroke at a time.
SpiroCanvas
Draw mesmerizing spirograph patterns & mandalas - relaxing geometric art.
SpiroCanvas brings the classic Spirograph toy to your fingertips — draw beautiful, intricate geometric patterns and mandalas with just a few taps. It's a relaxing, satisfying creative escape for doodlers, pattern-makers, and anyone who loves generative art.
Note Quest
Learn to read music notes - a friendly, fast way to memorize the staff.
Note Quest helps absolute beginners actually learn to read music notes on the staff - and come back tomorrow so it sticks.
Open Book Reader
Turn any web article into a calm two-page open book - flip pages with the arrow keys.
Turn any long web article into a two-page open-book view with keyboard page-flipping. Extracts the article with Mozilla Readability, paginates it into left/right pages, and flips with the arrow keys - realistic page-turn, paper/light/dark themes, adjustable font. Open source (MIT), fully local.
Shiji AI Reader
Read the Records of the Grand Historian (史記) with AI-powered translations
Explore 130+ chapters of the Shiji with structured content, AI-powered translations and explanations, an annotation system for people, places, terms, and grammar, plus bookmarks, highlights, and reading progress tracking.
Avatar Arcade
Classic arcade games with AI-powered avatar personalization
A collection of 9 classic arcade mini games with AI-powered avatar personalization. Play timeless games with a personalized twist, all in one app.
Lottery Lifetime Simulator
Visualize the true odds of winning the lottery
Will I win the lottery if I keep playing? This simulator answers honestly - it plays Powerball, Mega Millions and 23 more real games for an entire lifetime, over and over, so you can watch the true odds play out instead of guessing.
MindForum
Chat with historical figures powered by AI
An AI chat application that enables users to have consultations with historical figures. Features multi-participant conversations where historical figures can discuss topics with each other and the user, powered by Firebase and AI.
Orchestra Visualizer
See each instrument come alive as MIDI files play
Interactive symphony orchestra visualization - load and play MIDI files with SoundFont audio synthesis. Visual representation of orchestra sections (strings, woodwinds, brass, percussion) with instruments that glow and animate when playing notes in real-time.
Mayfly Life
Live each day as a complete lifetime through the mayfly metaphor
A philosophical app that reframes daily life through the mayfly metaphor - each day a new 'mayfly' inhabits your 'character' for 24 hours, making each day feel like a complete lifetime. Features daily tasks, evening reviews, and meaningful reflections.
TwinSubs
AI Subtitle Translator & Merger - Create bilingual subtitles effortlessly
TwinSubs is an AI-powered subtitle translator and merger that creates bilingual .srt files with two languages displayed simultaneously (one above, one below). Built with AI translation technology, it automatically detects source languages and generates perfectly synchronized dual-language subtitles for your videos.
Battleship Practice
Classic naval strategy. Place ships, hunt enemy fleet, and dominate the seas!
Master the classic game of Battleship in this dedicated practice environment! Perfect your strategic thinking and tactical skills at your own pace. Practice Battleship gameplay without pressure, improve your strategic thinking and tactics, play solo to master the game mechanics.
Honeycomb Bubble Breaker
A completely new way of bubble breaking with honeycomb-shaped bubbles
The sister version of Classic Bubble Breaker with over 10 million downloads. Experience bubble breaking in a completely new way with honeycomb-shaped bubble design. Tap connected bubbles with the same color to score and compete with others through the online ranking system!
Balance Master HD 2
Free 2D physics game — balance the blocks
A physics balance game. In every puzzle, your goal is to place all the shapes without dropping them off the screen. Let's see who can achieve the perfect balance!
Classic Bubble Breaker
The most classic version of Bubble Breaker
A classic puzzle game — tap connected bubbles of the same color to score. Aim for the highest score you can, and compete with others in the online ranking.
Ocean Bubble
Bubble shooting game with multiple game modes
A solo arcade with 800+ levels, a survival mode, a free online level store, and a powerful level editor. Battle over WiFi or Bluetooth, share one device between two players, or face AI opponents of various levels.
