DraftKey is a native Mac app for private local AI writing help. It adds AI autocomplete, instruction-based rewriting, and optional mechanical keyboard typing sounds inside compatible macOS text fields. Autocomplete and rewriting run on Apple Silicon Macs after setup, so drafts do not need to be moved into a cloud AI editor. It requires macOS 14+, Apple Silicon, 8GB memory for AI features, and about a 1.12GB model download.