● Built for the 0530 Saturday Tatami

The Offline-First Operating System for Traditional & Modern Dojos

Replace clunky gym software with 0ms local-first attendance, unmistakable Green / Amber / Red membership rings, Shoulder-Surfing Privacy, and an interactive belt syllabus for every martial art.

0530 Saturday Mat Mode Roster

Zero Dollar Amounts on the Mat. Unmistakable From 10 Feet Away.

🔒 Shoulder-Surfing Privacy Active
DK

Dan K. • Shodan (1st Dan)

1-Tap Check-In Ready • 42 Class Streak

GREEN • ACTIVE STANDING
MT

Kenji M. • 3rd Kyu

Renews within 5 days or 1 punch left

AMBER • EXPIRING SOON
SR

Sora R. • 5th Kyu

Tap ring for 2-sec Sensei Quick-Credit

RED • ACTION NEEDED

Engineered for Sweaty Hands & 30 Seconds Before Warmups

Every screen follows our 2-Tap Discoverability Law and Local-First SQLite architecture—so poor basement Wi-Fi never delays bow-in.

⚡

0ms Offline-First Mat Mode

Powered by an embedded Drift SQLite database on iOS, Android, Windows, and WebAssembly. Check students in, grade kata, and record payments with zero cellular signal—syncing automatically when back online.

🛡

Shoulder-Surfing Privacy

Grandfathered rates, family discounts, and dollar amounts are strictly forbidden from appearing on public kiosk or Mat Mode screens. Only high-contrast Green, Amber, and Red status rings are shown.

🥋

Multi-Style Belt & Syllabus Atlas

Pre-configured rank matrices and authentic terminology (Sensei, Senpai, Sifu, Sabumnim, Professor) for Karate, Okinawa Kobudo, Aikido, Brazilian Jiu-Jitsu, Judo, and Taekwondo.

📱

QR Pass & Lockdown Kiosk

Mount an iPad, Android tablet, or Windows touchscreen at the dojo entrance in PIN-protected Kiosk Lockdown mode. Students scan their Digital QR Pass from their phone in under a second.

🎤

Voice-to-Structured Sensei Notes

Record quick post-class voice memos on the walk to your car. Dojo Jutsu automatically parses instructor feedback into structured per-student progress notes.

💳

1-Tap Quick-Credit & Pluggable Readers

Accept cash, card reader swipes (Stripe, Square, Clover), or send a 1-tap self-checkout link so a student's ring flips to GREEN in 2 seconds without holding up warmups.

How to Use Dojo Jutsu

One unified application adapts dynamically to your role—whether you are running a school, training for your next belt exam, or managing a family of students.

For Senseis & School Owners

Run Your Dojo in 2 Taps

  • 1
    Create or Select Your Dojo Choose your martial art style (or import an existing student CSV from DojoExpert / spreadsheets in 60 seconds).
  • 2
    Open Mat Mode Before Class Tap green-ring avatars to check students in with haptic feedback, or launch PIN-locked Kiosk Scanner Mode at the door.
  • 3
    Resolve Amber / Red Rings in 2 Seconds Tap an Amber or Red ring to apply a 1-Tap Quick-Credit (+1 Month, +10 Class Pack, or Drop-In) or queue a payment link for after class.
  • 4
    Grade Curriculum & Promote Ranks Use the Promotion Clipboard during belt exams to score Kata, Kihon, and Kumite and issue digital rank certificates.
For Students & Parents

Track Your Path to Black Belt

  • 1
    Join with Your Dojo Invite Code Open the mobile or web app, enter your school's Dojo Invite Code, and sign in with Apple, Google, or Email.
  • 2
    Scan Your Digital QR Pass at the Mat Pull up your high-contrast Digital QR Pass to check in at the dojo kiosk—and switch seamlessly between family members with 1 tap.
  • 3
    Review Your Rank Syllabus & Streaks Check off required techniques, view your attendance count toward your next Kyu/Dan exam, and read Sensei feedback notes.
  • 4
    Private Self-Service Tuition Renewal Renew your membership or top up class punch-cards privately from home so your status ring is always GREEN when you step onto the mat.

Download & Access Anywhere

Available across iOS, Android, Windows Kiosk Desktop, and instant Web Portal with 100% feature parity.

iPhone & iPad Kiosk

Apple App Store

Native iOS & iPadOS app with camera QR scanning, Apple Sign-In, and haptic Mat Mode roster.

 App Store (Use Web / PWA Now)
Phones & Tablets

Google Play Store

Native Android build optimized for handheld check-ins and wall-mounted dojo entrance tablets.

▶ Google Play (Use Web / PWA Now)
Front Desk & Tatami PC

Windows Desktop

Ultra-fast native Windows executable with local SQLite persistence and USB/Bluetooth scanner support.

💻 Launch Desktop Web Console