EdgeSage

EdgeSage provides a comprehensive reference and coaching tool for knife sharpening. Key features include: • Searchable library of 52 knife steels • Comparative analysis across 5 performance axes • Personalized sharpening recipe generation • Live angle coaching using motion sensors • Core functionality available offline The application helps users understand their knife steel properties, comparing factors like edge retention, toughness, and ease of sharpening. Users can utilize a Steel Wizard to narrow down steel options based on usage, leading to tailored grit progressions and target angles for their sharpening setup. EdgeSage's live angle coach uses an iPhone's motion sensors to provide real-time haptic and voice feedback, helping users maintain a consistent bevel angle during freehand sharpening or stropping. It also supports various guided sharpening systems by providing setup calculations for their specific geometries. This tool is ideal for knife enthusiasts, sharpeners, and craftspeople seeking to achieve superior edges. It enables users to document their knives, recipes, and sharpening sessions, tracking each knife's history and performance over time.