For martial arts clubs of every size

Every student's progression, connected.

From first lesson to next grade — never lost in between. koshiFlo helps instructors see who's progressing, who's ready to grade, and who needs encouragement — without the admin.

Early adopter price — join before 14 September 2026.

Built by someone who trains

I'm Andrew Tinkler — 1st Dan in WJJKO Jujitsu, ten years on the mat, and an assistant coach badge. koshiFlo is the system I wanted on grading day: every student's history in one place, so the decision is YOURS and the paperwork is already done.

Andrew Tinkler, founder

More about why I built it

From first lesson to next grade.

Every stage of the journey, in one line.

First lesson & trial

Every enquiry becomes a journey from day one — nothing starts as a blank record.

Training & consistency

Sessions accumulate into a clear picture of pace — on track, or worth a quiet word.

Grading readinessMilestone

Sessions, time at grade, and requirements — all visible, never reduced to a hidden score.

Sign-off & next gradeMilestone

The instructor decides. koshiFlo keeps the record — and starts the next chapter.

Guide every student forward.

Pick a plan and set your club up today. Early adopter price — join before 14 September 2026.

Get started

What you can count on

  • Hosted in the UK

    Your club's records live in a UK data centre, not offshore.

  • Export on request, no lock-in

    Ask for a copy of your organisation's data at any time.

  • Never sold

    We do not sell club, student or guardian information to anyone.

  • Safeguarding-aware

    Guardian and safeguarding contacts are treated as what they are.

  • A registered UK company

    DoubleStripe Ltd — Companies House and VAT registered, no. 09944279.

The detail is in our privacy policy and terms.