| Feature | PC Engine (Win32) | Android Engine (APK) | |---------|------------------|----------------------| | File parsing | Memory-mapped files | Streamed from ContentResolver | | Undo/Redo | Full command pattern | Same but compressed in RAM | | Spell check | Hunspell (desktop dictionary) | Hunspell + lightweight dict | | Cloud sync | Native module | Wrapper around Android SyncAdapter | | Printing | GDI/PostScript | Android Print Framework |