Learn Ruby programming with guided lessons on your phone. Complete exercises and track progress. Access code examples and practice writing scripts. Receive feedback on code submissions. Sync learning history across devices.
by Dalvin Digital Design LLC★ 5.02 ratingsDeveloper ToolsFreeData updated 2026-09-06
With interactive lessons and instant feedback. Practice songs from thousands of pieces across genres. Adjust difficulty levels and track progress. Access courses created by professional pianists.
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Learn fundamentals and advanced concepts through structured tutorials. Access code examples and practice exercises. Track progress and review lessons offline without internet connectivity.
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Teach children to code with interactive lessons and step-by-step tutorials. Create and share projects using block-based programming. Track progress and receive feedback. Sync with classroom accounts for teacher oversight.
To code in with interactive lessons and tutorials. Type code directly within the . Access over 375 mini lessons. Progress through structured content. Sync lessons across devices. Receive real-time feedback on code input.
Write and execute Ruby scripts with auto-complete, auto-indent, and code coloring. Run selected text or files in a built-in browser or text editor. Support multiple file formats including txt, rb, html, and pdf.
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Learn through short, interactive lessons lasting 15 minutes. Explore diverse subjects for all skill levels. Complete quizzes to test knowledge. Track progress over time. Access real-world problem-solving exercises.
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Learn Swift programming with tutorials, code examples, and tips to improve code security and efficiency. Access structured lessons to build iOS applications. Explore practices for writing optimized code.
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Learn CPR with interactive lessons, video demonstrations, and hands-on practice. Complete the course in 90 minutes. Earn an OSHA and AHA compliant certificate. Practice chest compressions using a couch seat cushion.
Write and execute Ruby scripts with auto-indent, syntax highlighting, and code templates. Run selected text in the built-in browser or text editor. Support file operations for text, PDF, CHM, and MP3. Execute code via keyboard and use gets function.
Learn Swift programming through 100 short videos explaining key features. Each video includes a quiz to test understanding. Progress unlocks coding exercises like predicting output, rearranging code, and identifying errors.
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Send assignments, chat with teachers, get notifications
Send assignments to students, communicate directly with teachers, and receive notifications. View messages and track progress. Access learning materials and submit work through the platform.