Run and TypeScript code offline using a built-in compiler. Execute code in a WebView with a console for debugging. Edit, compile, and test scripts without internet or server connection. Transpile TypeScript to locally.
Vocabulary through CEFR-aligned wordlists and topic-based categories. Practice grammar with interactive exercises. Track progress with personalized learning paths and set daily study goals. Export notes and review materials offline.
Solve puzzles with varying difficulty levels. Input numbers manually or transfer from newspapers. Use pencil and paper style tools for notes and hints. Track possible numbers with a ball of string. Access expert-level hints like Swordfish.
Play puzzle games with 1300+ levels featuring handcrafted puzzles and challenge mode. Solve Sudoku-based grids with symmetry rules. Track progress through difficulty tiers and timed challenges.
Play and KenKen puzzles in five difficulty levels. Choose between classic and KenKen modes. Access daily challenges to progress from novice to expert. Solve puzzles with varying complexity to enhance logical thinking.
Learn the English alphabet with interactive featuring voice-enabled letters and quiz mode. Trace letters, listen to pronunciation, and test knowledge with quizzes. Explore playful phonics activities for early learners.
Solve logic puzzles by identifying mine locations. Use arrows and row/column counts to deduce mine positions. Mark suspected and avoid incorrect placements. Play on multiple difficulty levels.
Play with four difficulty levels and tutorial guidance. Solve puzzles using notes, undo/redo, and auto-note features. Color squares with two colors for advanced strategies. Check for errors manually or automatically.
Play with classic and randomly generated puzzles. Save progress and sync across devices. Track game history and difficulty levels. Adjust settings for custom difficulty.
Offers unique handcrafted puzzles in standard, symmetrical, and patterned styles. Users can select from four skill levels and choose multiple color schemes. The highlights incorrect answers in red and allows multiple notes for puzzle solving.
Solve puzzles with customizable grids. Input numbers manually or use pencil marks. Track progress across multiple games. Share completed puzzles via email or social media. No ads, in- purchases, or tracking features.
With interactive tutorials and project-based lessons. Complete exercises to practice coding concepts. Access code examples and debug tools. Track progress and review lessons for reinforcement.
Play to fill the board with 9 different colors. Solve puzzles with 5 difficulty levels. Use full undo support. Mark answers or pencil marks with dual-keypad input. View beautiful graphics. No timers.
Learn programming with code examples for and SQL. Access solutions for substring extraction, method declaration, database queries, table joins, data sorting, and SQL Server data types. Find ready-to-use code from books and trusted online sources.