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 and program language on iOS devices. Enter and run code, use built-in functions, and access help documentation. Save and load programs. Simulate Commodore 64 environment for educational use.
Edit plain text files with a minimalist interface. Open and create .txt documents. Sync with iCloud Drive, Dropbox, and Box. Support iPadOS trackpad. Enable dark mode for better visibility.
Create UML diagrams with class, interface, note, and association elements. Draw generalization, realization, and dependency relationships. Export diagrams as PNG via email or save to camera roll. Export XML files for desktop use.