Kasumi

Kasumi is a knife sharpening and maintenance companion designed to help you organize kitchen knives, manage sharpening stones, record maintenance sessions, and monitor blade angles. The app brings together a personal knife collection, whetstone inventory, guided sharpening stages, session history, and practical reference tools in one organized interface.

MANAGE YOUR KNIFE COLLECTION

Create a personal catalog of kitchen knives and keep important maintenance information together.

Add knives with their names, models, steel types, sharpening angles, and usage details. Each entry provides a convenient reference for checking the current condition of the blade and reviewing its maintenance requirements.

The collection screen displays your registered knives with individual usage indicators, helping you identify which blades may need attention.

TRACK SHARPENING INTERVALS

Monitor knife usage and keep track of maintenance intervals.

Each knife can have its own usage counter and sharpening reference. The main dashboard highlights blades that are due for maintenance and displays their current progress.

Open a knife profile to review its details or begin a new sharpening session.

Optional reminders help you maintain a regular care routine without repeatedly checking the collection.

ORGANIZE YOUR WHETSTONES

Maintain a separate inventory of sharpening stones.

Record stone names, grit levels, categories, and maintenance information. Organize your equipment from coarse repair stones to fine polishing stones.

The stone shelf provides a visual overview of available grit levels, including #220, #1000, #3000, #5000, and #8000.

Review individual stone records to see their intended use and maintenance history.

MONITOR STONE CONDITION

Keep track of sharpening stone flattening and usage.

The app displays the number of sessions completed since the last flattening and highlights stones that may require attention.

Use these records to organize stone care and maintain consistent preparation before your next sharpening session.

GUIDED SHARPENING SESSIONS

Follow a structured sharpening workflow with separate stages for soaking, edge setting, burr formation, refinement, stropping, and testing.

Select a knife and the appropriate stone to begin a session.

Each stage provides practical instructions and a timer to help organize the sharpening process.

Move between available grit levels and record completed steps as you progress through the session.

BLADE ANGLE REFERENCE

Use the built-in angle tool to check blade positioning during sharpening.

Select a knife to display its target angle and compare it with the current device orientation.

The interface includes a visual angle indicator, calibration control, and reset option.

Follow the on-screen instructions to establish a reference position on the sharpening stone before checking the blade angle.

This tool provides an orientation reference rather than a substitute for dedicated precision measuring equipment.

REVIEW YOUR SESSION HISTORY

The Session Log keeps your sharpening activity organized by date.

Review previously maintained knives, sharpening durations, and the sequence of grit levels used during each session.

A summary displays recent session counts, total time spent sharpening, and recorded test results.

Individual entries may also include notes about blade condition and observations made during maintenance.

PRACTICAL SHARPENING REFERENCE

Access the Guide section for additional information about knife care, sharpening stages, and equipment use.

Keep your collection records, stone details, angle references, and session history available from the same interface.

Kasumi provides a structured workspace for maintaining kitchen knives and sharpening equipment. Whether you are reviewing a blade's usage, preparing a whetstone, checking an angle, or documenting a completed session, the app helps you keep your maintenance routine organized.