For Practitioners
Kata Spinner
A daily-practice picker. Spin, train, log, repeat.
What it does
選
Spin a kata
Pull one of the 27 Shotokan kata at random, or weight the draw toward your grade.
録
Log the round
Mark what you trained. The history builds quietly, one session at a time.
級
Filter by rank
Narrow to the kata for your kyu, or open the draw to the whole syllabus.
Let the app choose. Spend your attention on the kata.
No streaks to chase, no badges to earn. One quiet draw, a record of the work, and the floor in front of you.